Description: Sedimentary records from the equatorial Pacific show that the deepening of the carbonate compensation depth (depth below which the calcium carbonate flux to the seafloor is balanced by dissolution) at the Eocene/Oligocene boundary (~33.9 Ma) was preceded by several episodes of high and low carbonate accumulation rates. However, data from other basins are scarce. Here, we report middle-late Eocene carbonate accumulation rates from sites located in the Pacific, Atlantic, Indian, and Southern Oceans. Our results show that the calcium carbonate burial was geographically, bathymetrically, and temporally heterogenous suggesting the fundamental role of surface calcium carbonate production in driving middle-late Eocene carbonate accumulation rates. Our data also suggest that an increase in ocean ventilation might have influenced calcium carbonate preservation at depths > 2500 m.
Global identifier:
Doi(
"10.1594/PANGAEA.934247",
)
DataMeasurements(
DataMeasurements {
domain: Unspecified,
station: None,
measured_variables: [],
methods: [],
},
)
Tags: Calciumcarbonat ? Lüftung ? Meeresgewässer ? Daten ? Bestattung ? Atlantischer Ozean ? Carbonate accumulation rates ? Eocene ? Integrated Ocean Drilling Program ? Site 1053 ? Site 1090 ? Site 1218 ? Site 1263 ? Site 689 ? Site 699 ? Site 709 ? Site 711 ? Site 748 ? Site 884 ? Site 929 ? Site U1404 ? Site U1406 ? ocean drilling program ?
Bounding boxes: -135.36666° .. 168.3371° x -64.517° .. 51.4504°
License: cc-by/4.0
Language: Englisch/English
Issued: 2021-07-30
Modified: 2021-11-10
Time ranges: 1987-01-16 - 2003-04-03
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