GEOLOGIC SETTING AND PRESERVATION OF A LATE PLEISTOCENE BALD CYPRESS FOREST DISCOVERED ON THE NORTHERN GULF OF MEXICO CONTINENTAL SHELF

2016 ◽  
Author(s):  
Suyapa Michell Gonzalez Rodriguez ◽  
Keyword(s):  
Gulf Of Mexico ◽  
Continental Shelf ◽  
Late Pleistocene ◽  
Northern Gulf Of Mexico ◽  
Bald Cypress ◽  
Geologic Setting

Stratigraphic pollen analysis performed on a late Pleistocene cypress forest preserved on the northern Gulf of Mexico continental shelf

2018 ◽  
Vol 33 (8) ◽  
pp. 865-870 ◽  
Author(s):  
Carl A. Reese ◽  
Grant L. Harley ◽  
Kristine L. DeLong ◽  
Samuel J. Bentley SR. ◽  
Kehui Xu ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
Continental Shelf ◽  
Late Pleistocene ◽  
Pollen Analysis ◽  
Northern Gulf Of Mexico

Late Pleistocene–Holocene sedimentation surrounding an active seafloor gas-hydrate and cold-seep field on the Northern Gulf of Mexico Slope

2010 ◽  
Vol 278 (1-4) ◽  
pp. 43-53 ◽  
Author(s):  
Wesley C. Ingram ◽  
Stephen R. Meyers ◽  
Charlotte A. Brunner ◽  
Christopher S. Martens
Keyword(s):  
Gulf Of Mexico ◽  
Late Pleistocene ◽  
Gas Hydrate ◽  
Cold Seep ◽  
Northern Gulf Of Mexico

Chemical variations in sedimentary facies of an inner continental shelf environment, Northern Gulf of Mexico

1973 ◽  
Vol 9 (2) ◽  
pp. 101-115 ◽  
Author(s):  
Thomas T. Tieh ◽  
Thomas E. Pyle ◽  
David H. Eggler ◽  
Ronald A. Nelson
Keyword(s):  
Gulf Of Mexico ◽  
Continental Shelf ◽  
Sedimentary Facies ◽  
Northern Gulf Of Mexico ◽  
Inner Continental Shelf

Seismic geomorphology, lithology, and evolution of the late Pleistocene Mars-Ursa turbidite region, Mississippi Canyon area, northern Gulf of Mexico

AAPG Bulletin ◽  
2007 ◽  
Vol 91 (2) ◽  
pp. 215-234 ◽  
Author(s):  
Derek E. Sawyer ◽  
Peter B. Flemings ◽  
R. Craig Shipp ◽  
Charles D. Winker
Keyword(s):  
Gulf Of Mexico ◽  
Late Pleistocene ◽  
Northern Gulf Of Mexico ◽  
Seismic Geomorphology ◽  
Mississippi Canyon

scholarly journals Seasonal Mixing and Biological Controls of the Carbonate System in a River-Dominated Continental Shelf Subject to Eutrophication and Hypoxia in the Northern Gulf of Mexico

2021 ◽  
Vol 8 ◽  
Author(s):  
Wei-Jen Huang ◽  
Wei-Jun Cai ◽  
Xinping Hu
Keyword(s):  
Gulf Of Mexico ◽  
Continental Shelf ◽  
Dissolved Inorganic Carbon ◽  
Time Lag ◽  
Distribution Patterns ◽  
Detailed Examination ◽  
Total Alkalinity ◽  
Dominant Factor ◽  
Near Surface ◽  
Northern Gulf Of Mexico

Large rivers export a large amount of dissolved inorganic carbon (DIC) and nutrients to continental shelves; and subsequent river-to-sea mixing, eutrophication, and seasonal hypoxia (dissolved oxygen < 2 mg⋅L–1) can further modify DIC and nutrient distributions and fluxes. However, quantitative studies of seasonal carbonate variations on shelves are still insufficient. We collected total alkalinity (TA), DIC, and NO3– data from nine cruises conducted between 2006 and 2010 on the northern Gulf of Mexico continental shelf, an area strongly influenced by the Mississippi and Atchafalaya Rivers. We applied a three-end-member model (based on salinity and potential alkalinity) to our data to remove the contribution of physical mixing to DIC and nitrate distribution patterns and to derive the net in situ removal of DIC and nitrate (ΔDIC and ΔNO3–, respectively). Systematic analyses demonstrated that the seasonal net DIC removal in the near-surface water was strong during summer and weak in winter. The peak in net DIC production in the near-bottom, subsurface waters of the inner and middle sections of the shelf occurred between July and September; it was coupled, but with a time lag, to the peak in the net DIC removal that occurred in the near-surface waters in June. A similar 2-month delay (i.e., January vs. November) could also be observed between their minima. A detailed examination of the relationship between ΔDIC and ΔNO3– demonstrates that net biological activity was the dominant factor of DIC removal and addition. Other effects, such as air–sea CO2 gas exchange, wetland exports, CaCO3 precipitation, and a regional variation of the Redfield ratio, were relatively minor. We suggest that the delayed coupling between eutrophic surface and hypoxic bottom waters reported here may also be seen in the carbon and nutrient cycles of other nutrient-rich, river-dominated ocean margins worldwide.

Continental Shelf Food Chains of the Northern Gulf of Mexico

2019 ◽  
pp. 67-106
Author(s):  
M. Dagg ◽  
C. Grimes ◽  
S. Lohrenz ◽  
B. McKee ◽  
R Twilley ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
Continental Shelf ◽  
Food Chains ◽  
Northern Gulf Of Mexico
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