Marine derived 87Sr/86Sr in coal, a new key to geochronology and palaeoenvironment: Elucidation of the India-Eurasia and China-Indochina collisions in Yunnan, China
Coal has formed in terrestrial and coastal-marine environments from sub-polar to equatorial regions since the Devonian. It contains detailed long-term records of contemporaneous environment, climate, and subsequent modifications. However, in general, direct chronological information in coal has been...
Published in: | International Journal of Coal Geology |
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Elsevier
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Online Access: | https://doi.org/10.1016/j.coal.2019.103304 https://nottingham-repository.worktribe.com/file/3354902/1/Marine%20derived https://nottingham-repository.worktribe.com/output/3354902 |
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ftunnottinghamrr:oai:nottingham-repository.worktribe.com:3354902 2023-05-15T15:18:07+02:00 Marine derived 87Sr/86Sr in coal, a new key to geochronology and palaeoenvironment: Elucidation of the India-Eurasia and China-Indochina collisions in Yunnan, China Spiro, Baruch F. Liu, Jingjing Dai, Shifeng Zeng, Rongshu Large, David French, David 2019-10-17 https://doi.org/10.1016/j.coal.2019.103304 https://nottingham-repository.worktribe.com/file/3354902/1/Marine%20derived https://nottingham-repository.worktribe.com/output/3354902 unknown Elsevier https://nottingham-repository.worktribe.com/output/3354902 International Journal of Coal Geology Volume 215 doi:https://doi.org/10.1016/j.coal.2019.103304 https://nottingham-repository.worktribe.com/file/3354902/1/Marine%20derived 0166-5162 doi:10.1016/j.coal.2019.103304 openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ CC-BY-NC-ND Coal Strontium isotopes Geochronology Palaeoenvironment Terrestrial-marine correlation China-Indochina collision Journal Article 2019 ftunnottinghamrr https://doi.org/10.1016/j.coal.2019.103304 2022-10-13T22:14:16Z Coal has formed in terrestrial and coastal-marine environments from sub-polar to equatorial regions since the Devonian. It contains detailed long-term records of contemporaneous environment, climate, and subsequent modifications. However, in general, direct chronological information in coal has been sparse. The coal investigated in the present study is from the Mile intermontane basin, Yunnan Province, China, north of an arm of the Mesozoic Tethys Ocean. The coal contains marine geochemical signatures and syngenetic gypsum, common in coastal-marine sediments. The gypsum contains marine-derived Sr and, hence, has geochronological potential. The 87Sr/86Sr record (0.708350-0.708591) in the Mile coal agrees with time-calibrated 87Sr/86Sr records of marine planktonic foraminifera obtained from core DSDP 588C, 22.25-18.27 Ma (Early Miocene). The peat of the Mile coal was deposited over 4.6 Ma., which possibly is the longest deposition of a coal bed in the world to have been found today, although this duration should include the period of non-peat deposition or erosion if present during the time of the 4.6-Ma.During this period, the regional geological structures were determined by the India-Eurasia collision, which resulted in transform faults with extensive rift structures, including the Mile rhomb-shaped graben. This structural setting enabled the flow of seawater from the South China Sea to reach inland graben structures, including that of the Mile Basin, where peat was deposited. Subsequent deformation caused by the South China-Indochina collision changed the regional structural and geographical-hydrological patterns. This affected the hydrology of the Mile Basin and resulted in its uplift to its present-day elevation of 1350 m.This study is, to our knowledge, the first to use the marine-derived 87Sr/86Sr indicator and chronometer in coal. At present, marine-influenced peats generated in coastal salt marshes extend from the Arctic Ocean (Alaska and Siberia) in the north, to Patagonia and New Zealand in the south, ... Article in Journal/Newspaper Arctic Arctic Ocean Foraminifera* Planktonic foraminifera Alaska Siberia University of Nottingham: Repository@Nottingham Arctic Arctic Ocean Patagonia New Zealand International Journal of Coal Geology 215 103304 |
institution |
Open Polar |
collection |
University of Nottingham: Repository@Nottingham |
op_collection_id |
ftunnottinghamrr |
language |
unknown |
topic |
Coal Strontium isotopes Geochronology Palaeoenvironment Terrestrial-marine correlation China-Indochina collision |
spellingShingle |
Coal Strontium isotopes Geochronology Palaeoenvironment Terrestrial-marine correlation China-Indochina collision Spiro, Baruch F. Liu, Jingjing Dai, Shifeng Zeng, Rongshu Large, David French, David Marine derived 87Sr/86Sr in coal, a new key to geochronology and palaeoenvironment: Elucidation of the India-Eurasia and China-Indochina collisions in Yunnan, China |
topic_facet |
Coal Strontium isotopes Geochronology Palaeoenvironment Terrestrial-marine correlation China-Indochina collision |
description |
Coal has formed in terrestrial and coastal-marine environments from sub-polar to equatorial regions since the Devonian. It contains detailed long-term records of contemporaneous environment, climate, and subsequent modifications. However, in general, direct chronological information in coal has been sparse. The coal investigated in the present study is from the Mile intermontane basin, Yunnan Province, China, north of an arm of the Mesozoic Tethys Ocean. The coal contains marine geochemical signatures and syngenetic gypsum, common in coastal-marine sediments. The gypsum contains marine-derived Sr and, hence, has geochronological potential. The 87Sr/86Sr record (0.708350-0.708591) in the Mile coal agrees with time-calibrated 87Sr/86Sr records of marine planktonic foraminifera obtained from core DSDP 588C, 22.25-18.27 Ma (Early Miocene). The peat of the Mile coal was deposited over 4.6 Ma., which possibly is the longest deposition of a coal bed in the world to have been found today, although this duration should include the period of non-peat deposition or erosion if present during the time of the 4.6-Ma.During this period, the regional geological structures were determined by the India-Eurasia collision, which resulted in transform faults with extensive rift structures, including the Mile rhomb-shaped graben. This structural setting enabled the flow of seawater from the South China Sea to reach inland graben structures, including that of the Mile Basin, where peat was deposited. Subsequent deformation caused by the South China-Indochina collision changed the regional structural and geographical-hydrological patterns. This affected the hydrology of the Mile Basin and resulted in its uplift to its present-day elevation of 1350 m.This study is, to our knowledge, the first to use the marine-derived 87Sr/86Sr indicator and chronometer in coal. At present, marine-influenced peats generated in coastal salt marshes extend from the Arctic Ocean (Alaska and Siberia) in the north, to Patagonia and New Zealand in the south, ... |
format |
Article in Journal/Newspaper |
author |
Spiro, Baruch F. Liu, Jingjing Dai, Shifeng Zeng, Rongshu Large, David French, David |
author_facet |
Spiro, Baruch F. Liu, Jingjing Dai, Shifeng Zeng, Rongshu Large, David French, David |
author_sort |
Spiro, Baruch F. |
title |
Marine derived 87Sr/86Sr in coal, a new key to geochronology and palaeoenvironment: Elucidation of the India-Eurasia and China-Indochina collisions in Yunnan, China |
title_short |
Marine derived 87Sr/86Sr in coal, a new key to geochronology and palaeoenvironment: Elucidation of the India-Eurasia and China-Indochina collisions in Yunnan, China |
title_full |
Marine derived 87Sr/86Sr in coal, a new key to geochronology and palaeoenvironment: Elucidation of the India-Eurasia and China-Indochina collisions in Yunnan, China |
title_fullStr |
Marine derived 87Sr/86Sr in coal, a new key to geochronology and palaeoenvironment: Elucidation of the India-Eurasia and China-Indochina collisions in Yunnan, China |
title_full_unstemmed |
Marine derived 87Sr/86Sr in coal, a new key to geochronology and palaeoenvironment: Elucidation of the India-Eurasia and China-Indochina collisions in Yunnan, China |
title_sort |
marine derived 87sr/86sr in coal, a new key to geochronology and palaeoenvironment: elucidation of the india-eurasia and china-indochina collisions in yunnan, china |
publisher |
Elsevier |
publishDate |
2019 |
url |
https://doi.org/10.1016/j.coal.2019.103304 https://nottingham-repository.worktribe.com/file/3354902/1/Marine%20derived https://nottingham-repository.worktribe.com/output/3354902 |
geographic |
Arctic Arctic Ocean Patagonia New Zealand |
geographic_facet |
Arctic Arctic Ocean Patagonia New Zealand |
genre |
Arctic Arctic Ocean Foraminifera* Planktonic foraminifera Alaska Siberia |
genre_facet |
Arctic Arctic Ocean Foraminifera* Planktonic foraminifera Alaska Siberia |
op_relation |
https://nottingham-repository.worktribe.com/output/3354902 International Journal of Coal Geology Volume 215 doi:https://doi.org/10.1016/j.coal.2019.103304 https://nottingham-repository.worktribe.com/file/3354902/1/Marine%20derived 0166-5162 doi:10.1016/j.coal.2019.103304 |
op_rights |
openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1016/j.coal.2019.103304 |
container_title |
International Journal of Coal Geology |
container_volume |
215 |
container_start_page |
103304 |
_version_ |
1766348349313646592 |