(Table 1) Stable isotope record of Middle Cretaceous benthic foraminifera
Preservation of planktic foraminiferal calcite has received widespread attention in recent years, but the taphonomy of benthic foraminiferal calcite and its influence on the deep-sea palaeotemperature record have gone comparatively unreported. Numerical modeling indicates that the carbonate recrysta...
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Language: | English |
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2009
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.831965 https://doi.org/10.1594/PANGAEA.831965 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.831965 |
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record_format |
openpolar |
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Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
122-763B 14-137 171-1050C 40-363 41-370 47-398D 79-545 80-550B Berthelina sp. δ13C δ18O Berthelina spp. Blake Nose North Atlantic Ocean Comment Deep Sea Drilling Project DEPTH sediment/rock DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Elevation of event Epistomina sp. Event label Foraminifera benthic δ13C benthic δ18O Gavelinella sp. Glomar Challenger Gyroidina globosa Gyroidinoides infracretacea Gyroidinoides sp. |
spellingShingle |
122-763B 14-137 171-1050C 40-363 41-370 47-398D 79-545 80-550B Berthelina sp. δ13C δ18O Berthelina spp. Blake Nose North Atlantic Ocean Comment Deep Sea Drilling Project DEPTH sediment/rock DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Elevation of event Epistomina sp. Event label Foraminifera benthic δ13C benthic δ18O Gavelinella sp. Glomar Challenger Gyroidina globosa Gyroidinoides infracretacea Gyroidinoides sp. Sexton, Philip F Wilson, Paul A (Table 1) Stable isotope record of Middle Cretaceous benthic foraminifera |
topic_facet |
122-763B 14-137 171-1050C 40-363 41-370 47-398D 79-545 80-550B Berthelina sp. δ13C δ18O Berthelina spp. Blake Nose North Atlantic Ocean Comment Deep Sea Drilling Project DEPTH sediment/rock DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Elevation of event Epistomina sp. Event label Foraminifera benthic δ13C benthic δ18O Gavelinella sp. Glomar Challenger Gyroidina globosa Gyroidinoides infracretacea Gyroidinoides sp. |
description |
Preservation of planktic foraminiferal calcite has received widespread attention in recent years, but the taphonomy of benthic foraminiferal calcite and its influence on the deep-sea palaeotemperature record have gone comparatively unreported. Numerical modeling indicates that the carbonate recrystallization histories of deep-sea sections are dominated by events in their early burial history, meaning that the degree of exchange between sediments and pore fluids during the early postburial phase holds the key to determining the palaeotemperature significance of diagenetic alteration of benthic foraminifera. Postburial sedimentation rate and lithology are likely to be important determinants of the paleoceanographic significance of this sediment–pore fluid interaction. Here we report an investigation of the impact of extreme change in sedimentation rate (a prolonged and widespread Upper Cretaceous hiatus in the North Atlantic Ocean) on the preservation and d18O of benthic foraminifera of Middle Cretaceous age (nannofossil zone NC10, uppermost Albian/lowermost Cenomanian, ~99 Ma ago) from multiple drill sites. At sites where this hiatus immediately overlies NC10, benthic foraminifera appear to display at least moderate preservation of the whole test. However, on closer inspection, these tests are shown to be extremely poorly preserved internally and yield d18O values substantially higher than those from contemporaneous better preserved benthic foraminifera at sites without an immediately overlying hiatus. These high d18O values are interpreted to indicate alteration close to the seafloor in cooler waters during the Late Cretaceous hiatus. Intersite differences in lithology modulate the diagenetic impact of this extreme change in sedimentation rate. Our results highlight the importance of thorough examination of benthic foraminiferal wall structures and lend support to the view that sedimentation rate and lithology are key factors controlling the paleoceanographic significance of diagenetic alteration of biogenic ... |
format |
Dataset |
author |
Sexton, Philip F Wilson, Paul A |
author_facet |
Sexton, Philip F Wilson, Paul A |
author_sort |
Sexton, Philip F |
title |
(Table 1) Stable isotope record of Middle Cretaceous benthic foraminifera |
title_short |
(Table 1) Stable isotope record of Middle Cretaceous benthic foraminifera |
title_full |
(Table 1) Stable isotope record of Middle Cretaceous benthic foraminifera |
title_fullStr |
(Table 1) Stable isotope record of Middle Cretaceous benthic foraminifera |
title_full_unstemmed |
(Table 1) Stable isotope record of Middle Cretaceous benthic foraminifera |
title_sort |
(table 1) stable isotope record of middle cretaceous benthic foraminifera |
publisher |
PANGAEA |
publishDate |
2009 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.831965 https://doi.org/10.1594/PANGAEA.831965 |
op_coverage |
MEDIAN LATITUDE: 21.471301 * MEDIAN LONGITUDE: -3.292246 * SOUTH-BOUND LATITUDE: -20.587000 * WEST-BOUND LONGITUDE: -76.234970 * NORTH-BOUND LATITUDE: 48.516000 * EAST-BOUND LONGITUDE: 112.208700 * DATE/TIME START: 1970-10-20T00:00:00 * DATE/TIME END: 1997-02-08T19:30:00 * MINIMUM DEPTH, sediment/rock: 255.82 m * MAXIMUM DEPTH, sediment/rock: 985.78 m |
long_lat |
ENVELOPE(-76.234970,112.208700,48.516000,-20.587000) |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: Sexton, Philip F; Wilson, Paul A (2009): Preservation of benthic foraminifera and reliability of deep-sea temperature records: Importance of sedimentation rates, lithology, and the need to examine test wall structure. Paleoceanography, 24(2), PA2208, https://doi.org/10.1029/2008PA001650 |
op_relation |
Bice, Karen L; Huber, Brian T; Norris, Richard D (2003): Extreme polar warmth during the Cretaceous greenhouse? Paradox of the late Turonian d18O record at Deep Sea Drilling Project Site 511. Paleoceanography, 18(2), 1031, https://doi.org/10.1029/2002PA000848 Fassell, Michelle L; Bralower, Timothy J (1999): Warm, equable Mid-Cretaceous: Stable isotope evidence. In: Special Paper 332: Evolution of the Cretaceous Ocean-Climate System, 332, Geological Society of America, 332, 121-142, https://doi.org/10.1130/0-8137-2332-9.121 Huber, Brian T; Norris, Richard D; MacLeod, Kenneth G (2002): Deep-sea paleotemperature record of extreme warmth during the Cretaceous. Geology, 30(2), 123-126, https://doi.org/10.1130/0091-7613(2002)030%3C0123:DSPROE%3E2.0.CO;2 https://doi.pangaea.de/10.1594/PANGAEA.831965 https://doi.org/10.1594/PANGAEA.831965 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.83196510.1029/2008PA00165010.1130/0-8137-2332-9.12110.1130/0091-7613(2002)030%3C0123:DSPROE%3E2.0.CO;2 |
_version_ |
1810463658737664000 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.831965 2024-09-15T18:23:27+00:00 (Table 1) Stable isotope record of Middle Cretaceous benthic foraminifera Sexton, Philip F Wilson, Paul A MEDIAN LATITUDE: 21.471301 * MEDIAN LONGITUDE: -3.292246 * SOUTH-BOUND LATITUDE: -20.587000 * WEST-BOUND LONGITUDE: -76.234970 * NORTH-BOUND LATITUDE: 48.516000 * EAST-BOUND LONGITUDE: 112.208700 * DATE/TIME START: 1970-10-20T00:00:00 * DATE/TIME END: 1997-02-08T19:30:00 * MINIMUM DEPTH, sediment/rock: 255.82 m * MAXIMUM DEPTH, sediment/rock: 985.78 m 2009 text/tab-separated-values, 487 data points https://doi.pangaea.de/10.1594/PANGAEA.831965 https://doi.org/10.1594/PANGAEA.831965 en eng PANGAEA Bice, Karen L; Huber, Brian T; Norris, Richard D (2003): Extreme polar warmth during the Cretaceous greenhouse? Paradox of the late Turonian d18O record at Deep Sea Drilling Project Site 511. Paleoceanography, 18(2), 1031, https://doi.org/10.1029/2002PA000848 Fassell, Michelle L; Bralower, Timothy J (1999): Warm, equable Mid-Cretaceous: Stable isotope evidence. In: Special Paper 332: Evolution of the Cretaceous Ocean-Climate System, 332, Geological Society of America, 332, 121-142, https://doi.org/10.1130/0-8137-2332-9.121 Huber, Brian T; Norris, Richard D; MacLeod, Kenneth G (2002): Deep-sea paleotemperature record of extreme warmth during the Cretaceous. Geology, 30(2), 123-126, https://doi.org/10.1130/0091-7613(2002)030%3C0123:DSPROE%3E2.0.CO;2 https://doi.pangaea.de/10.1594/PANGAEA.831965 https://doi.org/10.1594/PANGAEA.831965 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Sexton, Philip F; Wilson, Paul A (2009): Preservation of benthic foraminifera and reliability of deep-sea temperature records: Importance of sedimentation rates, lithology, and the need to examine test wall structure. Paleoceanography, 24(2), PA2208, https://doi.org/10.1029/2008PA001650 122-763B 14-137 171-1050C 40-363 41-370 47-398D 79-545 80-550B Berthelina sp. δ13C δ18O Berthelina spp. Blake Nose North Atlantic Ocean Comment Deep Sea Drilling Project DEPTH sediment/rock DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Elevation of event Epistomina sp. Event label Foraminifera benthic δ13C benthic δ18O Gavelinella sp. Glomar Challenger Gyroidina globosa Gyroidinoides infracretacea Gyroidinoides sp. dataset 2009 ftpangaea https://doi.org/10.1594/PANGAEA.83196510.1029/2008PA00165010.1130/0-8137-2332-9.12110.1130/0091-7613(2002)030%3C0123:DSPROE%3E2.0.CO;2 2024-07-24T02:31:32Z Preservation of planktic foraminiferal calcite has received widespread attention in recent years, but the taphonomy of benthic foraminiferal calcite and its influence on the deep-sea palaeotemperature record have gone comparatively unreported. Numerical modeling indicates that the carbonate recrystallization histories of deep-sea sections are dominated by events in their early burial history, meaning that the degree of exchange between sediments and pore fluids during the early postburial phase holds the key to determining the palaeotemperature significance of diagenetic alteration of benthic foraminifera. Postburial sedimentation rate and lithology are likely to be important determinants of the paleoceanographic significance of this sediment–pore fluid interaction. Here we report an investigation of the impact of extreme change in sedimentation rate (a prolonged and widespread Upper Cretaceous hiatus in the North Atlantic Ocean) on the preservation and d18O of benthic foraminifera of Middle Cretaceous age (nannofossil zone NC10, uppermost Albian/lowermost Cenomanian, ~99 Ma ago) from multiple drill sites. At sites where this hiatus immediately overlies NC10, benthic foraminifera appear to display at least moderate preservation of the whole test. However, on closer inspection, these tests are shown to be extremely poorly preserved internally and yield d18O values substantially higher than those from contemporaneous better preserved benthic foraminifera at sites without an immediately overlying hiatus. These high d18O values are interpreted to indicate alteration close to the seafloor in cooler waters during the Late Cretaceous hiatus. Intersite differences in lithology modulate the diagenetic impact of this extreme change in sedimentation rate. Our results highlight the importance of thorough examination of benthic foraminiferal wall structures and lend support to the view that sedimentation rate and lithology are key factors controlling the paleoceanographic significance of diagenetic alteration of biogenic ... Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-76.234970,112.208700,48.516000,-20.587000) |