scholarly journals Supplemental Material: The carbonate compensation depth in the South Atlantic Ocean since the Late Cretaceous

2021 ◽  
Author(s):  
Adriana Dutkiewicz ◽  
Dietmar Müller
Keyword(s):  
Atlantic Ocean ◽  
Late Cretaceous ◽  
South Atlantic ◽  
South Atlantic Ocean ◽  
Data Sources ◽  
The South ◽  
Compensation Depth ◽  
Carbonate Compensation Depth

Description of datasets and data sources, Figures S1–S14, and Table S1.<br>

scholarly journals Supplemental Material: The carbonate compensation depth in the South Atlantic Ocean since the Late Cretaceous

2021 ◽  
Author(s):  
Adriana Dutkiewicz ◽  
Dietmar Müller
Keyword(s):  
Atlantic Ocean ◽  
Late Cretaceous ◽  
South Atlantic ◽  
South Atlantic Ocean ◽  
Data Sources ◽  
The South ◽  
Compensation Depth ◽  
Carbonate Compensation Depth

Description of datasets and data sources, Figures S1–S14, and Table S1.<br>

The carbonate compensation depth in the South Atlantic Ocean since the Late Cretaceous

Geology ◽  
2021 ◽  
Author(s):  
Adriana Dutkiewicz ◽  
R. Dietmar Müller
Keyword(s):  
Atlantic Ocean ◽  
Deep Sea ◽  
South Atlantic ◽  
South Atlantic Ocean ◽  
Dynamic Topography ◽  
The South ◽  
Carbonate Deposition ◽  
Compensation Depth ◽  
Central South ◽  
Carbonate Compensation Depth

Deep-sea carbonate deposition is a complex process that is encapsulated in the carbonate compensation depth (CCD)—a facies boundary separating calcareous sediments from non-carbonates. Knowing how the CCD has varied over time is important for understanding and predicting the distribution of seafloor sediments and assessing their role in the global carbon cycle. We focus on the South Atlantic Ocean where the most recent CCD curve is based on Deep Sea Drilling Project (DSDP) Leg 73 sites drilled in 1980 in the South Atlantic Ocean. We compute the South and central South Atlantic CCD from the Late Cretaceous to the present day using updated age models from 45 DSDP and Ocean Drilling Program sites and backtracking with lithology-specific decompaction, eustasy, and dynamic topography. Our models extend further back in time and show more fluctuations than previous reconstructions, with the CCD varying by hundreds of meters during a span of 2–3 m.y. The addition of eustasy and dynamic topography deepens the CCD by as much as 500 m between 74 Ma and 45 Ma, and by ~200 m during the Cenozoic. The central South Atlantic CCD diverges from the average South Atlantic CCD during the Eocene and Miocene, when it was ~1 km shallower. These regional deviations may be due to changes in primary productivity and/or carbonate dissolution leading to reduced carbonate accumulation rates. Our CCD curves highlight the importance of regional processes in carbonate deposition across the South Atlantic and provide improved constraints for the modeling of geochemical cycles.

Late cretaceous—cenozoic magnetostratigraphic and biostratigraphic correlations of the South Atlantic Ocean: DSDP Leg 73

1983 ◽  
Vol 42 (1-2) ◽  
pp. 127-149 ◽  
Author(s):  
Richard Z. Poore ◽  
Lisa Tauxe ◽  
Stephen F. Percival ◽  
John L. Labrecque ◽  
Ramil Wright ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
Late Cretaceous ◽  
South Atlantic ◽  
South Atlantic Ocean ◽  
The South

Toxigenicity and biogeography of the diatom Pseudo-nitzschia across distinct environmental regimes in the South Atlantic Ocean

2015 ◽  
Vol 526 ◽  
pp. 67-87 ◽  
Author(s):  
ML Guannel ◽  
D Haring ◽  
MJ Twiner ◽  
Z Wang ◽  
AE Noble ◽  
...  
Keyword(s):  
Atlantic Ocean ◽  
South Atlantic ◽  
South Atlantic Ocean ◽  
The South ◽  
Environmental Regimes

scholarly journals Wind speed and mesoscale features drive net autotrophy in the South Atlantic Ocean

2021 ◽  
Vol 260 ◽  
pp. 112435
Author(s):  
Daniel Ford ◽  
Gavin H. Tilstone ◽  
Jamie D. Shutler ◽  
Vassilis Kitidis ◽  
Polina Lobanova ◽  
...  
Keyword(s):  
Wind Speed ◽  
Atlantic Ocean ◽  
South Atlantic ◽  
South Atlantic Ocean ◽  
The South

scholarly journals The source of Benguela Niños in the South Atlantic Ocean

2003 ◽  
Vol 30 (10) ◽  
pp. n/a-n/a ◽  
Author(s):  
Pierre Florenchie ◽  
Johann R. E. Lutjeharms ◽  
C. J. C. Reason ◽  
S. Masson ◽  
M. Rouault
Keyword(s):  
Atlantic Ocean ◽  
South Atlantic ◽  
South Atlantic Ocean ◽  
The South
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