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Late Cenozoic cooling favored glacial over tectonic controls on sediment supply to the western Gulf of Mexico
Terrigenous marine sediment records the landscape response to climate and tectonic perturbations. Here, we determined the source of Miocene-Pleistocene debris in the western Gulf of Mexico (WGOM) to understand changes in sediment supply during a greenhouse-glacial transition. Sediment composition at...
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| Published in: | Geology (Boulder) 2018-11, Vol.46 (11), p.995-998 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
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| cites | cdi_FETCH-LOGICAL-a348t-39acb82b67a8a301f4c0ccec08994a327c5a0c2cd76ff0749127422e752018943 |
| container_end_page | 998 |
| container_issue | 11 |
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| container_title | Geology (Boulder) |
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| creator | Hessler, Angela M Covault, Jacob A Stockli, Daniel F Fildani, Andrea |
| description | Terrigenous marine sediment records the landscape response to climate and tectonic perturbations. Here, we determined the source of Miocene-Pleistocene debris in the western Gulf of Mexico (WGOM) to understand changes in sediment supply during a greenhouse-glacial transition. Sediment composition at Deep Sea Drilling Project (DSDP) Sites 3, 87, and 89-91 shows a reversal in provenance following the onset of Pleistocene glaciation. During Miocene time, sediment was supplied to the deep WGOM from tectonically active, tropical highlands of southern Mexico, accumulating as sediment-gravity-flow deposits across broad deep-water fan systems. Then, following the mid-Pleistocene transition (ca. 0.7 Ma), the WGOM saw sustained (105 yr) influx of sediment from the north due to glacial erosion, high discharge, and expanded drainages across the Mississippi catchment. This major provenance shift points to the importance of glacial controls on marine sediment supply during late Cenozoic cooling. |
| doi_str_mv | 10.1130/G45528.1 |
| format | article |
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Here, we determined the source of Miocene-Pleistocene debris in the western Gulf of Mexico (WGOM) to understand changes in sediment supply during a greenhouse-glacial transition. Sediment composition at Deep Sea Drilling Project (DSDP) Sites 3, 87, and 89-91 shows a reversal in provenance following the onset of Pleistocene glaciation. During Miocene time, sediment was supplied to the deep WGOM from tectonically active, tropical highlands of southern Mexico, accumulating as sediment-gravity-flow deposits across broad deep-water fan systems. Then, following the mid-Pleistocene transition (ca. 0.7 Ma), the WGOM saw sustained (105 yr) influx of sediment from the north due to glacial erosion, high discharge, and expanded drainages across the Mississippi catchment. 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Here, we determined the source of Miocene-Pleistocene debris in the western Gulf of Mexico (WGOM) to understand changes in sediment supply during a greenhouse-glacial transition. Sediment composition at Deep Sea Drilling Project (DSDP) Sites 3, 87, and 89-91 shows a reversal in provenance following the onset of Pleistocene glaciation. During Miocene time, sediment was supplied to the deep WGOM from tectonically active, tropical highlands of southern Mexico, accumulating as sediment-gravity-flow deposits across broad deep-water fan systems. Then, following the mid-Pleistocene transition (ca. 0.7 Ma), the WGOM saw sustained (105 yr) influx of sediment from the north due to glacial erosion, high discharge, and expanded drainages across the Mississippi catchment. This major provenance shift points to the importance of glacial controls on marine sediment supply during late Cenozoic cooling.</description><subject>Atlantic Ocean</subject><subject>Catchment area</subject><subject>Cenozoic</subject><subject>climate change</subject><subject>Cooling</subject><subject>cores</subject><subject>Deep sea</subject><subject>Deep sea drilling</subject><subject>Deep Sea Drilling Project</subject><subject>Deep water</subject><subject>Deep-sea fans</subject><subject>Deepwater drilling</subject><subject>Drilling</subject><subject>DSDP Site 3</subject><subject>DSDP Site 87</subject><subject>DSDP Site 89</subject><subject>DSDP Site 90</subject><subject>DSDP Site 91</subject><subject>Erosion</subject><subject>Geology</subject><subject>Glacial erosion</subject><subject>Glaciation</subject><subject>Glaciers</subject><subject>Glaciology</subject><subject>Gravity</subject><subject>Gulf of Mexico</subject><subject>Landscape</subject><subject>Leg 1</subject><subject>Leg 10</subject><subject>lithostratigraphy</subject><subject>Marine sediments</subject><subject>mineral composition</subject><subject>Miocene</subject><subject>Neogene</subject><subject>North Atlantic</subject><subject>paleoclimatology</subject><subject>paleogeography</subject><subject>Plate tectonics</subject><subject>Pleistocene</subject><subject>Pleistocene glaciation</subject><subject>Pliocene</subject><subject>Provenance</subject><subject>Quaternary</subject><subject>Sediment</subject><subject>Sediment composition</subject><subject>Sediment deposits</subject><subject>Sediments</subject><subject>Stratigraphy</subject><subject>Tectonics</subject><subject>terrigenous materials</subject><subject>Tertiary</subject><subject>Tropical climate</subject><subject>western Gulf of Mexico</subject><issn>0091-7613</issn><issn>1943-2682</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNpNkE1Lw0AURQdRsFbBnzDgRpDU-UoyWUrRKlTc6DpMJy81JZ0XZyat9dcbjQtXb3M4975LyCVnM84lu12oNBV6xo_IhBdKJiLT4phMGCt4kmdcnpKzEDaMcZXmekK2SxOBzsHhFzaWWsS2cWtamx16qOi6NbYxLcUdeBrBRnS_lIse20DR0QBVswUXaei7rj3QiDS-A91DiOAdXfRtTbGmz_DZWDwnJ7VpA1z83Sl5e7h_nT8my5fF0_xumRipdExkYexKi1WWG20k47WyzFqwTBeFMlLkNjXMClvlWV2zXBVc5EoIyFPBuB6-npKr0dt5_OiHKuUGe--GyFJw9aPJMjlQ1yNlPYbgoS4732yNP5SclT9jluOYJR_QmxFdAwbbgLOwR99W_7xDcsm04kzIbw_5dWw</recordid><startdate>20181101</startdate><enddate>20181101</enddate><creator>Hessler, Angela M</creator><creator>Covault, Jacob A</creator><creator>Stockli, Daniel F</creator><creator>Fildani, Andrea</creator><general>Geological Society of America (GSA)</general><general>Geological Society of America</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>KL.</scope><scope>L.G</scope></search><sort><creationdate>20181101</creationdate><title>Late Cenozoic cooling favored glacial over tectonic controls on sediment supply to the western Gulf of Mexico</title><author>Hessler, Angela M ; 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Here, we determined the source of Miocene-Pleistocene debris in the western Gulf of Mexico (WGOM) to understand changes in sediment supply during a greenhouse-glacial transition. Sediment composition at Deep Sea Drilling Project (DSDP) Sites 3, 87, and 89-91 shows a reversal in provenance following the onset of Pleistocene glaciation. During Miocene time, sediment was supplied to the deep WGOM from tectonically active, tropical highlands of southern Mexico, accumulating as sediment-gravity-flow deposits across broad deep-water fan systems. Then, following the mid-Pleistocene transition (ca. 0.7 Ma), the WGOM saw sustained (105 yr) influx of sediment from the north due to glacial erosion, high discharge, and expanded drainages across the Mississippi catchment. 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| language | eng |
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| source | GeoScienceWorld |
| subjects | Atlantic Ocean Catchment area Cenozoic climate change Cooling cores Deep sea Deep sea drilling Deep Sea Drilling Project Deep water Deep-sea fans Deepwater drilling Drilling DSDP Site 3 DSDP Site 87 DSDP Site 89 DSDP Site 90 DSDP Site 91 Erosion Geology Glacial erosion Glaciation Glaciers Glaciology Gravity Gulf of Mexico Landscape Leg 1 Leg 10 lithostratigraphy Marine sediments mineral composition Miocene Neogene North Atlantic paleoclimatology paleogeography Plate tectonics Pleistocene Pleistocene glaciation Pliocene Provenance Quaternary Sediment Sediment composition Sediment deposits Sediments Stratigraphy Tectonics terrigenous materials Tertiary Tropical climate western Gulf of Mexico |
| title | Late Cenozoic cooling favored glacial over tectonic controls on sediment supply to the western Gulf of Mexico |
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