Version history for XWP4W5INaUdeS85EEjwA - SS03HAJA
Version: 1.0.6
- lastVersion: 1.0.5
- curator: nicholas
- timestamp: 2025-04-17 20:05:05.605949 UTC
- changes:
- Paleo Column metadata:
- year (MAT39811b4a7c): paleoData_isPrimary: NULL has been replaced by
‘TRUE’
- year (MAT39811b4a7c): paleoData_primaryAgeColumn: NULL has been
replaced by ‘TRUE’
- year (MATb745b71977): paleoData_isPrimary: NULL has been replaced by
‘TRUE’
- year (MATb745b71977): paleoData_primaryAgeColumn: NULL has been
replaced by ‘TRUE’
- year (MATccc9872c4c): paleoData_isPrimary: NULL has been replaced by
‘TRUE’
- year (MATccc9872c4c): paleoData_primaryAgeColumn: NULL has been
replaced by ‘TRUE’
- year (MATdc531c8775): paleoData_isPrimary: NULL has been replaced by
‘TRUE’
- year (MATdc531c8775): paleoData_primaryAgeColumn: NULL has been
replaced by ‘TRUE’
- d18O (Ocean2kHR_126): paleoData_isPrimary: NULL has been replaced by
‘FALSE’
- d18O (Ocean2kHR_126): paleoData_primaryAgeColumn: NULL has been
replaced by ‘FALSE’
- Sr/Ca (Ocean2kHR_127): paleoData_isPrimary: NULL has been replaced
by ‘FALSE’
- Sr/Ca (Ocean2kHR_127): paleoData_primaryAgeColumn: NULL has been
replaced by ‘FALSE’
- d18O (Ocean2kHR_128): paleoData_isPrimary: NULL has been replaced by
‘FALSE’
- d18O (Ocean2kHR_128): paleoData_primaryAgeColumn: NULL has been
replaced by ‘FALSE’
- Sr/Ca (Ocean2kHR_129): paleoData_isPrimary: NULL has been replaced
by ‘FALSE’
- Sr/Ca (Ocean2kHR_129): paleoData_primaryAgeColumn: NULL has been
replaced by ‘FALSE’
Version: 1.0.5
- lastVersion: 1.0.4
- curator: nicholas
- timestamp: 2025-04-11 16:27:24.048368 UTC
- changes:
- Paleo Interpretation metadata:
- d18O (Ocean2kHR_126): interpretation2_basis: ‘The d18Owater salinity
relation in the Caribbean is on the order of 0.2 to 0.3%/psu [Ruhlemann
et al., 1999; Watanabe et al., 2001]. Oxygen isotope records of these
sponges do notreveal reproducible temperature signals. Variations in
thed18O of the ambient water and the pH effect on the oxygenisotopic
composition of carbonates [Zeebe, 1999] mayobscure temperature signals
in thed18O records.’ has been replaced by NULL
- d18O (Ocean2kHR_126): interpretation2_direction: ‘positive’ has been
replaced by NULL
- d18O (Ocean2kHR_126): interpretation2_equilibriumEvidence: ‘The
observation that sponges precipitate aragonite in chemical and isotopic
equilibrium indicates that the composition of the precipitating fluid is
hardly influenced by the sponge metabolism. Thus pH changes in the
ambient seawater may be directly monitored by the d18O record of the
sponge aragonite. This hypothesis is supported by the boron isotopic
composition of sponge skeletons, which indicates mineralization under
seawater pH conditions [Bo�hm et al., 2000b].’ has been replaced by
NULL
- d18O (Ocean2kHR_126): interpretation2_inferredMaterial: ‘seawater’
has been replaced by NULL
- d18O (Ocean2kHR_126): interpretation2_integrationTime: ‘2to6’ has
been replaced by NULL
- d18O (Ocean2kHR_126): interpretation2_integrationTimeBasis: ‘For
U-Th analysis, 0.3 to 1g of sponge material was drilled along visible
growth layers. The sample size was chosen so that the width and depth of
the sampling groove was equivalent to a period of about 20 years, given
a growth rate on the order of 0.2 mm/a. 11 samples were anayzed for
U-Th. The external reproducibility of the U/Th dating results was
determined as about �20 years (2sem) by five replicate analyses of
sample Ce96-40 and confirmed by analysis of three closely spaced sample
pairs (Ce96-45/51, Ce96-170/172, Ce96-123/40). For one sample pair
(Ce96-184/186) U/Th ages could not be confirmed within external
reproducibility. As the age data of this specimen deviate significantly
from a linear growth curve, we fitted a third order polynomial to the
U/Th ages.’ has been replaced by NULL
- d18O (Ocean2kHR_126): interpretation2_integrationTimeUncertainty:
‘1-92 years’ has been replaced by NULL
- d18O (Ocean2kHR_126):
interpretation2_integrationTimeUncertaintyType: ‘U-Th dating
uncertainty’ has been replaced by NULL
- d18O (Ocean2kHR_126): interpretation2_integrationTimeUnits: ‘year’
has been replaced by NULL
- d18O (Ocean2kHR_126): interpretation2_mathematicalRelation: ‘linear’
has been replaced by NULL
- d18O (Ocean2kHR_126): interpretation2_rank: ‘1’ has been replaced by
NULL
- d18O (Ocean2kHR_126): interpretation2_scope: ‘isotope’ has been
replaced by ‘climate’
- d18O (Ocean2kHR_126): interpretation2_variable: ‘seawaterIsotope’
has been replaced by NULL
- d18O (Ocean2kHR_126): interpretation2_variableGroup:
‘EffectiveMoisture’ has been replaced by NULL
- d18O (Ocean2kHR_126): interpretation2_variableGroupDirection:
‘negative’ has been replaced by NULL
- d18O (Ocean2kHR_126): interpretation2_variableGroupOriginal:
‘d18O_seawater’ has been replaced by NULL
- d18O (Ocean2kHR_126): interpretation3_basis: ‘Temperature equation
of Bohm et al. [2000]. Oxygen isotope records of these sponges do
notreveal reproducible temperature signals. Variations in thed18O of the
ambient water and the pH effect on the oxygenisotopic composition of
carbonates [Zeebe, 1999] mayobscure temperature signals in thed18O
records.’ has been replaced by NULL
- d18O (Ocean2kHR_126): interpretation3_direction: ‘negative’ has been
replaced by NULL
- d18O (Ocean2kHR_126): interpretation3_equilibriumEvidence: ‘The
observation that sponges precipitate aragonite in chemical and isotopic
equilibrium indicates that the composition of the precipitating fluid is
hardly influenced by the sponge metabolism. Thus pH changes in the
ambient seawater may be directly monitored by the d18O record of the
sponge aragonite. This hypothesis is supported by the boron isotopic
composition of sponge skeletons, which indicates mineralization under
seawater pH conditions [Bo�hm et al., 2000b].’ has been replaced by
NULL
- d18O (Ocean2kHR_126): interpretation3_inferredMaterial: ‘seawater’
has been replaced by NULL
- d18O (Ocean2kHR_126): interpretation3_integrationTime: ‘6-Feb’ has
been replaced by NULL
- d18O (Ocean2kHR_126): interpretation3_integrationTimeBasis: ‘For
U-Th analysis, 0.3 to 1g of sponge material was drilled along visible
growth layers. The sample size was chosen so that the width and depth of
the sampling groove was equivalent to a period of about 20 years, given
a growth rate on the order of 0.2 mm/a. 11 samples were anayzed for
U-Th. The external reproducibility of the U/Th dating results was
determined as about �20 years (2sem) by five replicate analyses of
sample Ce96-40 and confirmed by analysis of three closely spaced sample
pairs (Ce96-45/51, Ce96-170/172, Ce96-123/40). For one sample pair
(Ce96-184/186) U/Th ages could not be confirmed within external
reproducibility. As the age data of this specimen deviate significantly
from a linear growth curve, we fitted a third order polynomial to the
U/Th ages.’ has been replaced by NULL
- d18O (Ocean2kHR_126): interpretation3_integrationTimeUncertainty:
‘1-92 years’ has been replaced by NULL
- d18O (Ocean2kHR_126):
interpretation3_integrationTimeUncertaintyType: ‘U-Th dating
uncertainty’ has been replaced by NULL
- d18O (Ocean2kHR_126): interpretation3_integrationTimeUnits: ‘year’
has been replaced by NULL
- d18O (Ocean2kHR_126): interpretation3_mathematicalRelation: ‘linear’
has been replaced by NULL
- d18O (Ocean2kHR_126): interpretation3_rank: ‘2’ has been replaced by
NULL
- d18O (Ocean2kHR_126): interpretation3_scope: ‘isotope’ has been
replaced by ‘climate’
- d18O (Ocean2kHR_126): interpretation3_variable: ‘temperature’ has
been replaced by NULL
- d18O (Ocean2kHR_126): interpretation3_variableGroup: ‘Temperature’
has been replaced by NULL
- d18O (Ocean2kHR_126): interpretation3_variableGroupDirection:
‘negative’ has been replaced by NULL
- d18O (Ocean2kHR_126): interpretation3_variableGroupOriginal:
‘T_water’ has been replaced by NULL
- d18O (Ocean2kHR_126): interpretation4_rank: NULL has been replaced
by ‘1’
- d18O (Ocean2kHR_126): interpretation4_basis: NULL has been replaced
by ‘The d18Owater salinity relation in the Caribbean is on the order of
0.2 to 0.3%/psu [Ruhlemann et al., 1999; Watanabe et al., 2001]. Oxygen
isotope records of these sponges do notreveal reproducible temperature
signals. Variations in thed18O of the ambient water and the pH effect on
the oxygenisotopic composition of carbonates [Zeebe, 1999] mayobscure
temperature signals in thed18O records.’
- d18O (Ocean2kHR_126): interpretation4_direction: NULL has been
replaced by ‘positive’
- d18O (Ocean2kHR_126): interpretation4_equilibriumEvidence: NULL has
been replaced by ‘The observation that sponges precipitate aragonite in
chemical and isotopic equilibrium indicates that the composition of the
precipitating fluid is hardly influenced by the sponge metabolism. Thus
pH changes in the ambient seawater may be directly monitored by the d18O
record of the sponge aragonite. This hypothesis is supported by the
boron isotopic composition of sponge skeletons, which indicates
mineralization under seawater pH conditions [Bo�hm et al., 2000b].’
- d18O (Ocean2kHR_126): interpretation4_inferredMaterial: NULL has
been replaced by ‘seawater’
- d18O (Ocean2kHR_126): interpretation4_integrationTime: NULL has been
replaced by ‘2to6’
- d18O (Ocean2kHR_126): interpretation4_integrationTimeBasis: NULL has
been replaced by ‘For U-Th analysis, 0.3 to 1g of sponge material was
drilled along visible growth layers. The sample size was chosen so that
the width and depth of the sampling groove was equivalent to a period of
about 20 years, given a growth rate on the order of 0.2 mm/a. 11 samples
were anayzed for U-Th. The external reproducibility of the U/Th dating
results was determined as about �20 years (2sem) by five replicate
analyses of sample Ce96-40 and confirmed by analysis of three closely
spaced sample pairs (Ce96-45/51, Ce96-170/172, Ce96-123/40). For one
sample pair (Ce96-184/186) U/Th ages could not be confirmed within
external reproducibility. As the age data of this specimen deviate
significantly from a linear growth curve, we fitted a third order
polynomial to the U/Th ages.’
- d18O (Ocean2kHR_126): interpretation4_integrationTimeUncertainty:
NULL has been replaced by ‘1-92 years’
- d18O (Ocean2kHR_126):
interpretation4_integrationTimeUncertaintyType: NULL has been replaced
by ‘U-Th dating uncertainty’
- d18O (Ocean2kHR_126): interpretation4_integrationTimeUnits: NULL has
been replaced by ‘year’
- d18O (Ocean2kHR_126): interpretation4_mathematicalRelation: NULL has
been replaced by ‘linear’
- d18O (Ocean2kHR_126): interpretation4_variable: NULL has been
replaced by ‘seawaterIsotope’
- d18O (Ocean2kHR_126): interpretation4_variableGroup: NULL has been
replaced by ‘EffectiveMoisture’
- d18O (Ocean2kHR_126): interpretation4_variableGroupDirection: NULL
has been replaced by ‘negative’
- d18O (Ocean2kHR_126): interpretation4_variableGroupOriginal: NULL
has been replaced by ‘d18O_seawater’
- d18O (Ocean2kHR_126): interpretation5_basis: NULL has been replaced
by ‘Temperature equation of Bohm et al. [2000]. Oxygen isotope records
of these sponges do notreveal reproducible temperature signals.
Variations in thed18O of the ambient water and the pH effect on the
oxygenisotopic composition of carbonates [Zeebe, 1999] mayobscure
temperature signals in thed18O records.’
- d18O (Ocean2kHR_126): interpretation5_direction: NULL has been
replaced by ‘negative’
- d18O (Ocean2kHR_126): interpretation5_equilibriumEvidence: NULL has
been replaced by ‘The observation that sponges precipitate aragonite in
chemical and isotopic equilibrium indicates that the composition of the
precipitating fluid is hardly influenced by the sponge metabolism. Thus
pH changes in the ambient seawater may be directly monitored by the d18O
record of the sponge aragonite. This hypothesis is supported by the
boron isotopic composition of sponge skeletons, which indicates
mineralization under seawater pH conditions [Bo�hm et al., 2000b].’
- d18O (Ocean2kHR_126): interpretation5_inferredMaterial: NULL has
been replaced by ‘seawater’
- d18O (Ocean2kHR_126): interpretation5_integrationTime: NULL has been
replaced by ‘6-Feb’
- d18O (Ocean2kHR_126): interpretation5_integrationTimeBasis: NULL has
been replaced by ‘For U-Th analysis, 0.3 to 1g of sponge material was
drilled along visible growth layers. The sample size was chosen so that
the width and depth of the sampling groove was equivalent to a period of
about 20 years, given a growth rate on the order of 0.2 mm/a. 11 samples
were anayzed for U-Th. The external reproducibility of the U/Th dating
results was determined as about �20 years (2sem) by five replicate
analyses of sample Ce96-40 and confirmed by analysis of three closely
spaced sample pairs (Ce96-45/51, Ce96-170/172, Ce96-123/40). For one
sample pair (Ce96-184/186) U/Th ages could not be confirmed within
external reproducibility. As the age data of this specimen deviate
significantly from a linear growth curve, we fitted a third order
polynomial to the U/Th ages.’
- d18O (Ocean2kHR_126): interpretation5_integrationTimeUncertainty:
NULL has been replaced by ‘1-92 years’
- d18O (Ocean2kHR_126):
interpretation5_integrationTimeUncertaintyType: NULL has been replaced
by ‘U-Th dating uncertainty’
- d18O (Ocean2kHR_126): interpretation5_integrationTimeUnits: NULL has
been replaced by ‘year’
- d18O (Ocean2kHR_126): interpretation5_mathematicalRelation: NULL has
been replaced by ‘linear’
- d18O (Ocean2kHR_126): interpretation5_rank: NULL has been replaced
by ‘2’
- d18O (Ocean2kHR_126): interpretation5_scope: NULL has been replaced
by ‘isotope’
- d18O (Ocean2kHR_126): interpretation5_variable: NULL has been
replaced by ‘temperature’
- d18O (Ocean2kHR_126): interpretation5_variableGroup: NULL has been
replaced by ‘Temperature’
- d18O (Ocean2kHR_126): interpretation5_variableGroupDirection: NULL
has been replaced by ‘negative’
- d18O (Ocean2kHR_126): interpretation5_variableGroupOriginal: NULL
has been replaced by ‘T_water’
- d18O (Ocean2kHR_126): interpretation6_scope: NULL has been replaced
by ‘isotope’
- Sr/Ca (Ocean2kHR_127): interpretation2_inferredMaterial: ‘seawater’
has been replaced by NULL
- Sr/Ca (Ocean2kHR_127): interpretation2_scope: ‘isotope’ has been
replaced by ‘climate’
- Sr/Ca (Ocean2kHR_127): interpretation3_scope: ‘isotope’ has been
replaced by ‘climate’
- Sr/Ca (Ocean2kHR_127): interpretation4_inferredMaterial: NULL has
been replaced by ‘seawater’
- Sr/Ca (Ocean2kHR_127): interpretation5_scope: NULL has been replaced
by ‘isotope’
- Sr/Ca (Ocean2kHR_127): interpretation6_scope: NULL has been replaced
by ‘isotope’
- d18O (Ocean2kHR_128): interpretation2_basis: ‘The d18Owater salinity
relation in the Caribbean is on the order of 0.2 to 0.3%/psu [Ruhlemann
et al., 1999; Watanabe et al., 2001]. Oxygen isotope records of these
sponges do notreveal reproducible temperature signals. Variations in
thed18O of the ambient water and the pH effect on the oxygenisotopic
composition of carbonates [Zeebe, 1999] mayobscure temperature signals
in thed18O records.’ has been replaced by NULL
- d18O (Ocean2kHR_128): interpretation2_direction: ‘positive’ has been
replaced by NULL
- d18O (Ocean2kHR_128): interpretation2_equilibriumEvidence: ‘The
observation that sponges precipitate aragonite in chemical and isotopic
equilibrium indicates that the composition of the precipitating fluid is
hardly influenced by the sponge metabolism. Thus pH changes in the
ambient seawater may be directly monitored by the d18O record of the
sponge aragonite. This hypothesis is supported by the boron isotopic
composition of sponge skeletons, which indicates mineralization under
seawater pH conditions [Bo�hm et al., 2000b].’ has been replaced by
NULL
- d18O (Ocean2kHR_128): interpretation2_inferredMaterial: ‘seawater’
has been replaced by NULL
- d18O (Ocean2kHR_128): interpretation2_integrationTime: ‘2to6’ has
been replaced by NULL
- d18O (Ocean2kHR_128): interpretation2_integrationTimeBasis: ‘For
U-Th analysis, 0.3 to 1g of sponge material was drilled along visible
growth layers. The sample size was chosen so that the width and depth of
the sampling groove was equivalent to a period of about 20 years, given
a growth rate on the order of 0.2 mm/a. 4 samples were anayzed for U-Th.
10 samples for radiocarbon analysis were removed. They compared D14C
data with a D14C curve measured on a Florida surface water coral
[Druffel, 1989]. The fit was constrained by assuming that the growth
rate was constant in the relevant part of the sponge skeleton. They
further assume that the timing of the radiocarbon increase at 125 mbsl
was similar to surface waters in that region because the amplitude of
change in D14C is similar to the surface water change. For specimen Pb19
a mean growth rate of 0.19 mm/a was calculated from the slope of a
linear fit to the dated tie points. A lifespan from about 1400 A.D. to
1996 A.D. was determined by extrapolating the mean growth rate to the
base of the skeleton. The U/Th chronology is independently confirmed by
the correct localization of the nuclear weapon test radiocarbon increase
at a depth of about 5.9 mm below the surface of the skeleton (Figure 6,
Table 2). Further independent support for the reliability of our
chronologies is provided from the fit of d13C data of the investigated
sponge skeletons and atmospheric CO2 records [Bo�hm et al., 2002].’ has
been replaced by NULL
- d18O (Ocean2kHR_128): interpretation2_integrationTimeUncertainty:
‘1-25 years’ has been replaced by NULL
- d18O (Ocean2kHR_128):
interpretation2_integrationTimeUncertaintyType: ‘U-Th dating
uncertainty’ has been replaced by NULL
- d18O (Ocean2kHR_128): interpretation2_integrationTimeUnits: ‘year’
has been replaced by NULL
- d18O (Ocean2kHR_128): interpretation2_mathematicalRelation: ‘linear’
has been replaced by NULL
- d18O (Ocean2kHR_128): interpretation2_rank: ‘1’ has been replaced by
NULL
- d18O (Ocean2kHR_128): interpretation2_scope: ‘isotope’ has been
replaced by ‘climate’
- d18O (Ocean2kHR_128): interpretation2_variable: ‘seawaterIsotope’
has been replaced by NULL
- d18O (Ocean2kHR_128): interpretation2_variableGroup:
‘EffectiveMoisture’ has been replaced by NULL
- d18O (Ocean2kHR_128): interpretation2_variableGroupDirection:
‘negative’ has been replaced by NULL
- d18O (Ocean2kHR_128): interpretation2_variableGroupOriginal:
‘d18O_seawater’ has been replaced by NULL
- d18O (Ocean2kHR_128): interpretation3_basis: ‘Temperature equation
of Bohm et al. [2000]. Oxygen isotope records of these sponges do
notreveal reproducible temperature signals. Variations in thed18O of the
ambient water and the pH effect on the oxygenisotopic composition of
carbonates [Zeebe, 1999] mayobscure temperature signals in thed18O
records.’ has been replaced by NULL
- d18O (Ocean2kHR_128): interpretation3_direction: ‘negative’ has been
replaced by NULL
- d18O (Ocean2kHR_128): interpretation3_equilibriumEvidence: ‘The
observation that sponges precipitate aragonite in chemical and isotopic
equilibrium indicates that the composition of the precipitating fluid is
hardly influenced by the sponge metabolism. Thus pH changes in the
ambient seawater may be directly monitored by the d18O record of the
sponge aragonite. This hypothesis is supported by the boron isotopic
composition of sponge skeletons, which indicates mineralization under
seawater pH conditions [Bo�hm et al., 2000b].’ has been replaced by
NULL
- d18O (Ocean2kHR_128): interpretation3_inferredMaterial: ‘seawater’
has been replaced by NULL
- d18O (Ocean2kHR_128): interpretation3_integrationTime: ‘6-Feb’ has
been replaced by NULL
- d18O (Ocean2kHR_128): interpretation3_integrationTimeBasis: ‘For
U-Th analysis, 0.3 to 1g of sponge material was drilled along visible
growth layers. The sample size was chosen so that the width and depth of
the sampling groove was equivalent to a period of about 20 years, given
a growth rate on the order of 0.2 mm/a. 4 samples were anayzed for U-Th.
10 samples for radiocarbon analysis were removed. They compared D14C
data with a D14C curve measured on a Florida surface water coral
[Druffel, 1989]. The fit was constrained by assuming that the growth
rate was constant in the relevant part of the sponge skeleton. They
further assume that the timing of the radiocarbon increase at 125 mbsl
was similar to surface waters in that region because the amplitude of
change in D14C is similar to the surface water change. For specimen Pb19
a mean growth rate of 0.19 mm/a was calculated from the slope of a
linear fit to the dated tie points. A lifespan from about 1400 A.D. to
1996 A.D. was determined by extrapolating the mean growth rate to the
base of the skeleton. The U/Th chronology is independently confirmed by
the correct localization of the nuclear weapon test radiocarbon increase
at a depth of about 5.9 mm below the surface of the skeleton (Figure 6,
Table 2). Further independent support for the reliability of our
chronologies is provided from the fit of d13C data of the investigated
sponge skeletons and atmospheric CO2 records [Bo�hm et al., 2002].’ has
been replaced by NULL
- d18O (Ocean2kHR_128): interpretation3_integrationTimeUncertainty:
‘1-25 years’ has been replaced by NULL
- d18O (Ocean2kHR_128):
interpretation3_integrationTimeUncertaintyType: ‘U-Th dating
uncertainty’ has been replaced by NULL
- d18O (Ocean2kHR_128): interpretation3_integrationTimeUnits: ‘year’
has been replaced by NULL
- d18O (Ocean2kHR_128): interpretation3_mathematicalRelation: ‘linear’
has been replaced by NULL
- d18O (Ocean2kHR_128): interpretation3_rank: ‘2’ has been replaced by
NULL
- d18O (Ocean2kHR_128): interpretation3_scope: ‘isotope’ has been
replaced by ‘climate’
- d18O (Ocean2kHR_128): interpretation3_variable: ‘temperature’ has
been replaced by NULL
- d18O (Ocean2kHR_128): interpretation3_variableGroup: ‘Temperature’
has been replaced by NULL
- d18O (Ocean2kHR_128): interpretation3_variableGroupDirection:
‘negative’ has been replaced by NULL
- d18O (Ocean2kHR_128): interpretation3_variableGroupOriginal:
‘T_water’ has been replaced by NULL
- d18O (Ocean2kHR_128): interpretation4_rank: NULL has been replaced
by ‘1’
- d18O (Ocean2kHR_128): interpretation4_basis: NULL has been replaced
by ‘The d18Owater salinity relation in the Caribbean is on the order of
0.2 to 0.3%/psu [Ruhlemann et al., 1999; Watanabe et al., 2001]. Oxygen
isotope records of these sponges do notreveal reproducible temperature
signals. Variations in thed18O of the ambient water and the pH effect on
the oxygenisotopic composition of carbonates [Zeebe, 1999] mayobscure
temperature signals in thed18O records.’
- d18O (Ocean2kHR_128): interpretation4_direction: NULL has been
replaced by ‘positive’
- d18O (Ocean2kHR_128): interpretation4_equilibriumEvidence: NULL has
been replaced by ‘The observation that sponges precipitate aragonite in
chemical and isotopic equilibrium indicates that the composition of the
precipitating fluid is hardly influenced by the sponge metabolism. Thus
pH changes in the ambient seawater may be directly monitored by the d18O
record of the sponge aragonite. This hypothesis is supported by the
boron isotopic composition of sponge skeletons, which indicates
mineralization under seawater pH conditions [Bo�hm et al., 2000b].’
- d18O (Ocean2kHR_128): interpretation4_inferredMaterial: NULL has
been replaced by ‘seawater’
- d18O (Ocean2kHR_128): interpretation4_integrationTime: NULL has been
replaced by ‘2to6’
- d18O (Ocean2kHR_128): interpretation4_integrationTimeBasis: NULL has
been replaced by ‘For U-Th analysis, 0.3 to 1g of sponge material was
drilled along visible growth layers. The sample size was chosen so that
the width and depth of the sampling groove was equivalent to a period of
about 20 years, given a growth rate on the order of 0.2 mm/a. 4 samples
were anayzed for U-Th. 10 samples for radiocarbon analysis were removed.
They compared D14C data with a D14C curve measured on a Florida surface
water coral [Druffel, 1989]. The fit was constrained by assuming that
the growth rate was constant in the relevant part of the sponge
skeleton. They further assume that the timing of the radiocarbon
increase at 125 mbsl was similar to surface waters in that region
because the amplitude of change in D14C is similar to the surface water
change. For specimen Pb19 a mean growth rate of 0.19 mm/a was calculated
from the slope of a linear fit to the dated tie points. A lifespan from
about 1400 A.D. to 1996 A.D. was determined by extrapolating the mean
growth rate to the base of the skeleton. The U/Th chronology is
independently confirmed by the correct localization of the nuclear
weapon test radiocarbon increase at a depth of about 5.9 mm below the
surface of the skeleton (Figure 6, Table 2). Further independent support
for the reliability of our chronologies is provided from the fit of d13C
data of the investigated sponge skeletons and atmospheric CO2 records
[Bo�hm et al., 2002].’
- d18O (Ocean2kHR_128): interpretation4_integrationTimeUncertainty:
NULL has been replaced by ‘1-25 years’
- d18O (Ocean2kHR_128):
interpretation4_integrationTimeUncertaintyType: NULL has been replaced
by ‘U-Th dating uncertainty’
- d18O (Ocean2kHR_128): interpretation4_integrationTimeUnits: NULL has
been replaced by ‘year’
- d18O (Ocean2kHR_128): interpretation4_mathematicalRelation: NULL has
been replaced by ‘linear’
- d18O (Ocean2kHR_128): interpretation4_variable: NULL has been
replaced by ‘seawaterIsotope’
- d18O (Ocean2kHR_128): interpretation4_variableGroup: NULL has been
replaced by ‘EffectiveMoisture’
- d18O (Ocean2kHR_128): interpretation4_variableGroupDirection: NULL
has been replaced by ‘negative’
- d18O (Ocean2kHR_128): interpretation4_variableGroupOriginal: NULL
has been replaced by ‘d18O_seawater’
- d18O (Ocean2kHR_128): interpretation5_basis: NULL has been replaced
by ‘Temperature equation of Bohm et al. [2000]. Oxygen isotope records
of these sponges do notreveal reproducible temperature signals.
Variations in thed18O of the ambient water and the pH effect on the
oxygenisotopic composition of carbonates [Zeebe, 1999] mayobscure
temperature signals in thed18O records.’
- d18O (Ocean2kHR_128): interpretation5_direction: NULL has been
replaced by ‘negative’
- d18O (Ocean2kHR_128): interpretation5_equilibriumEvidence: NULL has
been replaced by ‘The observation that sponges precipitate aragonite in
chemical and isotopic equilibrium indicates that the composition of the
precipitating fluid is hardly influenced by the sponge metabolism. Thus
pH changes in the ambient seawater may be directly monitored by the d18O
record of the sponge aragonite. This hypothesis is supported by the
boron isotopic composition of sponge skeletons, which indicates
mineralization under seawater pH conditions [Bo�hm et al., 2000b].’
- d18O (Ocean2kHR_128): interpretation5_inferredMaterial: NULL has
been replaced by ‘seawater’
- d18O (Ocean2kHR_128): interpretation5_integrationTime: NULL has been
replaced by ‘6-Feb’
- d18O (Ocean2kHR_128): interpretation5_integrationTimeBasis: NULL has
been replaced by ‘For U-Th analysis, 0.3 to 1g of sponge material was
drilled along visible growth layers. The sample size was chosen so that
the width and depth of the sampling groove was equivalent to a period of
about 20 years, given a growth rate on the order of 0.2 mm/a. 4 samples
were anayzed for U-Th. 10 samples for radiocarbon analysis were removed.
They compared D14C data with a D14C curve measured on a Florida surface
water coral [Druffel, 1989]. The fit was constrained by assuming that
the growth rate was constant in the relevant part of the sponge
skeleton. They further assume that the timing of the radiocarbon
increase at 125 mbsl was similar to surface waters in that region
because the amplitude of change in D14C is similar to the surface water
change. For specimen Pb19 a mean growth rate of 0.19 mm/a was calculated
from the slope of a linear fit to the dated tie points. A lifespan from
about 1400 A.D. to 1996 A.D. was determined by extrapolating the mean
growth rate to the base of the skeleton. The U/Th chronology is
independently confirmed by the correct localization of the nuclear
weapon test radiocarbon increase at a depth of about 5.9 mm below the
surface of the skeleton (Figure 6, Table 2). Further independent support
for the reliability of our chronologies is provided from the fit of d13C
data of the investigated sponge skeletons and atmospheric CO2 records
[Bo�hm et al., 2002].’
- d18O (Ocean2kHR_128): interpretation5_integrationTimeUncertainty:
NULL has been replaced by ‘1-25 years’
- d18O (Ocean2kHR_128):
interpretation5_integrationTimeUncertaintyType: NULL has been replaced
by ‘U-Th dating uncertainty’
- d18O (Ocean2kHR_128): interpretation5_integrationTimeUnits: NULL has
been replaced by ‘year’
- d18O (Ocean2kHR_128): interpretation5_mathematicalRelation: NULL has
been replaced by ‘linear’
- d18O (Ocean2kHR_128): interpretation5_rank: NULL has been replaced
by ‘2’
- d18O (Ocean2kHR_128): interpretation5_scope: NULL has been replaced
by ‘isotope’
- d18O (Ocean2kHR_128): interpretation5_variable: NULL has been
replaced by ‘temperature’
- d18O (Ocean2kHR_128): interpretation5_variableGroup: NULL has been
replaced by ‘Temperature’
- d18O (Ocean2kHR_128): interpretation5_variableGroupDirection: NULL
has been replaced by ‘negative’
- d18O (Ocean2kHR_128): interpretation5_variableGroupOriginal: NULL
has been replaced by ‘T_water’
- d18O (Ocean2kHR_128): interpretation6_scope: NULL has been replaced
by ‘isotope’
- Sr/Ca (Ocean2kHR_129): interpretation2_inferredMaterial: ‘seawater’
has been replaced by NULL
- Sr/Ca (Ocean2kHR_129): interpretation2_scope: ‘isotope’ has been
replaced by ‘climate’
- Sr/Ca (Ocean2kHR_129): interpretation3_scope: ‘isotope’ has been
replaced by ‘climate’
- Sr/Ca (Ocean2kHR_129): interpretation4_inferredMaterial: NULL has
been replaced by ‘seawater’
- Sr/Ca (Ocean2kHR_129): interpretation5_scope: NULL has been replaced
by ‘isotope’
- Sr/Ca (Ocean2kHR_129): interpretation6_scope: NULL has been replaced
by ‘isotope’
Version: 1.0.4
- lastVersion: 1.0.3
- curator: nicholas
- timestamp: 2025-04-09 21:54:37.011194 UTC
- notes: Updated lipdverse database entry with a changed
file.
- changes:
- Paleo Interpretation metadata:
- d18O (Ocean2kHR_126): interpretation1_seasonality: ‘-12 -11 -10 -9
-8 1 2 3 4 5 6 7’ has been replaced by ‘Aug-Jul’
- d18O (Ocean2kHR_126): interpretation1_variable: ‘temperature and
salinity’ has been replaced by ‘temperature’
- d18O (Ocean2kHR_126): interpretation2_variable: ‘d18O_seawater’ has
been replaced by ‘seawaterIsotope’
- d18O (Ocean2kHR_126): interpretation3_variable: ‘T_water’ has been
replaced by ‘temperature’
- Sr/Ca (Ocean2kHR_127): interpretation1_seasonality: ‘-12 -11 -10 -9
-8 1 2 3 4 5 6 7’ has been replaced by ‘Aug-Jul’
- Sr/Ca (Ocean2kHR_127): interpretation1_variable: ‘T’ has been
replaced by ‘temperature’
- d18O (Ocean2kHR_128): interpretation1_seasonality: ‘-12 -11 -10 -9
-8 1 2 3 4 5 6 7’ has been replaced by ‘Aug-Jul’
- d18O (Ocean2kHR_128): interpretation1_variable: ‘temperature and
salinity’ has been replaced by ‘temperature’
- d18O (Ocean2kHR_128): interpretation2_variable: ‘d18O_seawater’ has
been replaced by ‘seawaterIsotope’
- d18O (Ocean2kHR_128): interpretation3_variable: ‘T_water’ has been
replaced by ‘temperature’
- Sr/Ca (Ocean2kHR_129): interpretation1_seasonality: ‘-12 -11 -10 -9
-8 1 2 3 4 5 6 7’ has been replaced by ‘Aug-Jul’
- Sr/Ca (Ocean2kHR_129): interpretation1_variable: ‘T’ has been
replaced by ‘temperature’
Version: 1.0.3
- lastVersion: 1.0.2
- curator: nicholas
- timestamp: 2025-04-09 20:28:04.845158 UTC
- notes: Changes made as part of LiPDverse vocabulary
standardization process
- changes:
- Paleo Interpretation metadata:
- d18O (Ocean2kHR_126): interpretation1_seasonality: ‘-12 -11 -10 -9
-8 1 2 3 4 5 6 7’ has been replaced by ‘Aug-Jul’
- d18O (Ocean2kHR_126): interpretation1_variable: ‘temperature and
salinity’ has been replaced by ‘temperature’
- d18O (Ocean2kHR_126): interpretation2_variable: ‘d18O_seawater’ has
been replaced by ‘seawaterIsotope’
- d18O (Ocean2kHR_126): interpretation3_variable: ‘T_water’ has been
replaced by ‘temperature’
- Sr/Ca (Ocean2kHR_127): interpretation1_seasonality: ‘-12 -11 -10 -9
-8 1 2 3 4 5 6 7’ has been replaced by ‘Aug-Jul’
- Sr/Ca (Ocean2kHR_127): interpretation1_variable: ‘T’ has been
replaced by ‘temperature’
- d18O (Ocean2kHR_128): interpretation1_seasonality: ‘-12 -11 -10 -9
-8 1 2 3 4 5 6 7’ has been replaced by ‘Aug-Jul’
- d18O (Ocean2kHR_128): interpretation1_variable: ‘temperature and
salinity’ has been replaced by ‘temperature’
- d18O (Ocean2kHR_128): interpretation2_variable: ‘d18O_seawater’ has
been replaced by ‘seawaterIsotope’
- d18O (Ocean2kHR_128): interpretation3_variable: ‘T_water’ has been
replaced by ‘temperature’
- Sr/Ca (Ocean2kHR_129): interpretation1_seasonality: ‘-12 -11 -10 -9
-8 1 2 3 4 5 6 7’ has been replaced by ‘Aug-Jul’
- Sr/Ca (Ocean2kHR_129): interpretation1_variable: ‘T’ has been
replaced by ‘temperature’
Version: 1.0.2
- lastVersion: 1.0.1
- curator: nicholas
- timestamp: 2025-04-08 17:34:53.949976 UTC
- notes: Changes made as part of LiPDverse vocabulary
standardization process
- changes:
- Paleo Column metadata:
- year (MAT39811b4a7c): paleoData_units: ‘AD’ has been replaced by ‘yr
AD’
- year (MAT39811b4a7c): paleoData_longName: NULL has been replaced by
‘AD’
- year (MATb745b71977): paleoData_units: ‘AD’ has been replaced by ‘yr
AD’
- year (MATb745b71977): paleoData_longName: NULL has been replaced by
‘AD’
- year (MATccc9872c4c): paleoData_units: ‘AD’ has been replaced by ‘yr
AD’
- year (MATccc9872c4c): paleoData_longName: NULL has been replaced by
‘AD’
- year (MATdc531c8775): paleoData_units: ‘AD’ has been replaced by ‘yr
AD’
- year (MATdc531c8775): paleoData_longName: NULL has been replaced by
‘AD’
- d18O (Ocean2kHR_126): paleoData_longName: NULL has been replaced by
‘AD’
- Sr/Ca (Ocean2kHR_127): paleoData_longName: NULL has been replaced by
‘AD’
- d18O (Ocean2kHR_128): paleoData_longName: NULL has been replaced by
‘AD’
- Sr/Ca (Ocean2kHR_129): paleoData_longName: NULL has been replaced by
‘AD’
Version: 1.0.1
- lastVersion: 1.0.0
- curator: nicholas
- timestamp: 2022-08-16 23:29:50 UTC
- changes:
- Paleo Interpretation metadata:
- d18O (Ocean2kHR_126): interpretation4_scope: NULL has been replaced
by ‘isotope’
- Sr/Ca (Ocean2kHR_127): interpretation3_scope: NULL has been replaced
by ‘isotope’
- Sr/Ca (Ocean2kHR_127): interpretation4_scope: NULL has been replaced
by ‘isotope’
- d18O (Ocean2kHR_128): interpretation4_scope: NULL has been replaced
by ‘isotope’
- Sr/Ca (Ocean2kHR_129): interpretation3_scope: NULL has been replaced
by ‘isotope’
- Sr/Ca (Ocean2kHR_129): interpretation4_scope: NULL has been replaced
by ‘isotope’