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Southwestern Gondwana’s Permian climate amelioration recorded in coal-bearing deposits of the Moatize sub-basin (Mozambique)

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Southwestern Gondwana’s Permian climate amelioration recorded in coal-bearing deposits of the Moatize sub-basin (Mozambique). / Götz, Annette E.; Hancox, P. John; Lloyd, Andrew.

In: Palaeoworld, 23.08.2018.

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@article{d54dc5667c4d4a1b9235bd56b751f745,
title = "Southwestern Gondwana’s Permian climate amelioration recorded in coal-bearing deposits of the Moatize sub-basin (Mozambique)",
abstract = "The postglacial climate history of Gondwana represents the most prominent climate amelioration in the Phanerozoic, ranging from severe icehouse conditions in the Late Carboniferous (Pennsylvanian) to extreme hothouse conditions in the Early Triassic. Here we report new sedimentological and palynological data from a 350 m thick coal-bearing succession intersected by borehole 945L_0022, drilled in the eastern Tete Province of Mozambique, which documents southwestern Gondwana’s Permian postglacial climate amelioration. Palynofacies data further support the environmental reconstructions interpreted from the sedimentary succession. Changes in the palynomorph assemblage document a shift from cold, to cool-temperate, to warm-temperate climatic conditions. This climate signature corresponds with observations from other depositional environments elsewhere in southern Africa, and thus enables correlation on a regional to interregional scale. Thick lacustrine deposits are described within the lower coal-bearing succession, reflecting the final glacial retreat, with melt waters supplying fresh water to the incipient lacustrine system. Lakes as characteristic postglacial sedimentary sinks are excellent palaeoclimate archives and the high Total Organic Carbon content of these fine-grained clastic sediments also makes them potential source rock targets for oil and gas.",
keywords = "Palaeoclimate, sedimentology, palynology, Permian, Moatize sub-basin, Mozambique, embargoover12",
author = "G{\"o}tz, {Annette E.} and Hancox, {P. John} and Andrew Lloyd",
year = "2018",
month = "8",
day = "23",
doi = "10.1016/j.palwor.2018.08.004",
language = "English",
journal = "Palaeoworld",
issn = "1871-174X",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Southwestern Gondwana’s Permian climate amelioration recorded in coal-bearing deposits of the Moatize sub-basin (Mozambique)

AU - Götz, Annette E.

AU - Hancox, P. John

AU - Lloyd, Andrew

PY - 2018/8/23

Y1 - 2018/8/23

N2 - The postglacial climate history of Gondwana represents the most prominent climate amelioration in the Phanerozoic, ranging from severe icehouse conditions in the Late Carboniferous (Pennsylvanian) to extreme hothouse conditions in the Early Triassic. Here we report new sedimentological and palynological data from a 350 m thick coal-bearing succession intersected by borehole 945L_0022, drilled in the eastern Tete Province of Mozambique, which documents southwestern Gondwana’s Permian postglacial climate amelioration. Palynofacies data further support the environmental reconstructions interpreted from the sedimentary succession. Changes in the palynomorph assemblage document a shift from cold, to cool-temperate, to warm-temperate climatic conditions. This climate signature corresponds with observations from other depositional environments elsewhere in southern Africa, and thus enables correlation on a regional to interregional scale. Thick lacustrine deposits are described within the lower coal-bearing succession, reflecting the final glacial retreat, with melt waters supplying fresh water to the incipient lacustrine system. Lakes as characteristic postglacial sedimentary sinks are excellent palaeoclimate archives and the high Total Organic Carbon content of these fine-grained clastic sediments also makes them potential source rock targets for oil and gas.

AB - The postglacial climate history of Gondwana represents the most prominent climate amelioration in the Phanerozoic, ranging from severe icehouse conditions in the Late Carboniferous (Pennsylvanian) to extreme hothouse conditions in the Early Triassic. Here we report new sedimentological and palynological data from a 350 m thick coal-bearing succession intersected by borehole 945L_0022, drilled in the eastern Tete Province of Mozambique, which documents southwestern Gondwana’s Permian postglacial climate amelioration. Palynofacies data further support the environmental reconstructions interpreted from the sedimentary succession. Changes in the palynomorph assemblage document a shift from cold, to cool-temperate, to warm-temperate climatic conditions. This climate signature corresponds with observations from other depositional environments elsewhere in southern Africa, and thus enables correlation on a regional to interregional scale. Thick lacustrine deposits are described within the lower coal-bearing succession, reflecting the final glacial retreat, with melt waters supplying fresh water to the incipient lacustrine system. Lakes as characteristic postglacial sedimentary sinks are excellent palaeoclimate archives and the high Total Organic Carbon content of these fine-grained clastic sediments also makes them potential source rock targets for oil and gas.

KW - Palaeoclimate

KW - sedimentology

KW - palynology

KW - Permian

KW - Moatize sub-basin

KW - Mozambique

KW - embargoover12

U2 - 10.1016/j.palwor.2018.08.004

DO - 10.1016/j.palwor.2018.08.004

M3 - Article

JO - Palaeoworld

JF - Palaeoworld

SN - 1871-174X

ER -

ID: 11371478