Late Cenozoic Sedimentary Evolution of Pagri‐Duoqing Co graben, Southern End of Yadong‐Gulu Rift, Southern Tibet
The north trending rifts in southern Tibet represent the E–W extension of the plateau and confirming the initial rifting age is key to the study of mechanics of these rifts. Pagri–Duoqing Co graben is located at southern end of Yadong–Gulu rift, where the late Cenozoic sediments is predominately com...
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description | The north trending rifts in southern Tibet represent the E–W extension of the plateau and confirming the initial rifting age is key to the study of mechanics of these rifts. Pagri–Duoqing Co graben is located at southern end of Yadong–Gulu rift, where the late Cenozoic sediments is predominately composed of fluvio‐lacustrine and moraine. Based on the sedimentary composition and structures, the fluvio‐lacustrine could be divided into three facies, namely, lacustrine, lacustrine fan delta and alluvial fan. The presence of paleo‐currents and conglomerate components and the provenance of the strata around the graben indicate that it was Tethys Himalaya and High Himalaya. Electron spin resonance (ESR) dating and paleo‐magnetic dating suggest that the age of the strata ranges from ca. 1.2 Ma to ca. 8 Ma. Optically stimulated luminescence (OSL) dating showed that moraine in the graben mainly developed from around 181–109 ka (late Middle Pleistocene). Combining previous data about the Late Cenozoic strata in other basins, it is suggested that 8–15 Ma may be the initial rifting time. Together with sediment distribution and drainage system, the sedimentary evolution of Pagri could be divided into four stages. The graben rifted at around 15–8 Ma due to the eastern graben‐boundary fault resulting in the appearance of a paleolake. Following by a geologically quiet period about 8–2.5 Ma, the paleolake expanded from east to west at around 8–6 Ma reaching its maximum at ca. 6 Ma. Then, the graben was broken at about 2.5 Ma. At last, the development of the glacier separated the graben into two parts that were Pagri and Duoqing Co since the later stages of the Middle Pleistocene. The evolution process suggested that the former three stages were related to the tectonic movement, which determined the basement of the graben, while the last stage may have been influenced by glacial activity caused by climate change. |
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Pagri–Duoqing Co graben is located at southern end of Yadong–Gulu rift, where the late Cenozoic sediments is predominately composed of fluvio‐lacustrine and moraine. Based on the sedimentary composition and structures, the fluvio‐lacustrine could be divided into three facies, namely, lacustrine, lacustrine fan delta and alluvial fan. The presence of paleo‐currents and conglomerate components and the provenance of the strata around the graben indicate that it was Tethys Himalaya and High Himalaya. Electron spin resonance (ESR) dating and paleo‐magnetic dating suggest that the age of the strata ranges from ca. 1.2 Ma to ca. 8 Ma. Optically stimulated luminescence (OSL) dating showed that moraine in the graben mainly developed from around 181–109 ka (late Middle Pleistocene). Combining previous data about the Late Cenozoic strata in other basins, it is suggested that 8–15 Ma may be the initial rifting time. Together with sediment distribution and drainage system, the sedimentary evolution of Pagri could be divided into four stages. The graben rifted at around 15–8 Ma due to the eastern graben‐boundary fault resulting in the appearance of a paleolake. Following by a geologically quiet period about 8–2.5 Ma, the paleolake expanded from east to west at around 8–6 Ma reaching its maximum at ca. 6 Ma. Then, the graben was broken at about 2.5 Ma. At last, the development of the glacier separated the graben into two parts that were Pagri and Duoqing Co since the later stages of the Middle Pleistocene. The evolution process suggested that the former three stages were related to the tectonic movement, which determined the basement of the graben, while the last stage may have been influenced by glacial activity caused by climate change.</description><edition>English ed.</edition><identifier>ISSN: 1000-9515</identifier><identifier>EISSN: 1755-6724</identifier><identifier>DOI: 10.1111/1755-6724.13586</identifier><language>eng</language><publisher>Richmond: Wiley Subscription Services, Inc</publisher><subject>Alluvial fans ; Basins ; Cenozoic ; China ; Climate change ; Composition ; Conglomerates ; Dating ; Dating techniques ; Drainage systems ; Electron paramagnetic resonance ; Electron spin ; ESR and paleomagnetic dating ; Evolution ; Glaciers ; Glaciohydrology ; Graben ; initial rifting age ; Late Cenozoic strata ; Mechanics ; Moraines ; north trending rifts ; OSL ; Pleistocene ; Provenance ; Rifting ; Sediment distribution ; sedimentary evolution ; Sedimentary facies ; Sediments ; Spin resonance ; Strata ; Tibet</subject><ispartof>Acta geologica Sinica (Beijing), 2018-06, Vol.92 (3), p.972-987</ispartof><rights>2018 Geological Society of China</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3166-9e24e3f3fd18822536e5597432fb1d60a5a46e31fbb127c6d5cf656a5562a6713</citedby><cites>FETCH-LOGICAL-c3166-9e24e3f3fd18822536e5597432fb1d60a5a46e31fbb127c6d5cf656a5562a6713</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2F1755-6724.13586$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2F1755-6724.13586$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>HA, Guanghao</creatorcontrib><creatorcontrib>WU, Zhonghai</creatorcontrib><creatorcontrib>HE, Lin</creatorcontrib><creatorcontrib>WANG, Shubing</creatorcontrib><title>Late Cenozoic Sedimentary Evolution of Pagri‐Duoqing Co graben, Southern End of Yadong‐Gulu Rift, Southern Tibet</title><title>Acta geologica Sinica (Beijing)</title><description>The north trending rifts in southern Tibet represent the E–W extension of the plateau and confirming the initial rifting age is key to the study of mechanics of these rifts. Pagri–Duoqing Co graben is located at southern end of Yadong–Gulu rift, where the late Cenozoic sediments is predominately composed of fluvio‐lacustrine and moraine. Based on the sedimentary composition and structures, the fluvio‐lacustrine could be divided into three facies, namely, lacustrine, lacustrine fan delta and alluvial fan. The presence of paleo‐currents and conglomerate components and the provenance of the strata around the graben indicate that it was Tethys Himalaya and High Himalaya. Electron spin resonance (ESR) dating and paleo‐magnetic dating suggest that the age of the strata ranges from ca. 1.2 Ma to ca. 8 Ma. Optically stimulated luminescence (OSL) dating showed that moraine in the graben mainly developed from around 181–109 ka (late Middle Pleistocene). Combining previous data about the Late Cenozoic strata in other basins, it is suggested that 8–15 Ma may be the initial rifting time. Together with sediment distribution and drainage system, the sedimentary evolution of Pagri could be divided into four stages. The graben rifted at around 15–8 Ma due to the eastern graben‐boundary fault resulting in the appearance of a paleolake. Following by a geologically quiet period about 8–2.5 Ma, the paleolake expanded from east to west at around 8–6 Ma reaching its maximum at ca. 6 Ma. Then, the graben was broken at about 2.5 Ma. At last, the development of the glacier separated the graben into two parts that were Pagri and Duoqing Co since the later stages of the Middle Pleistocene. The evolution process suggested that the former three stages were related to the tectonic movement, which determined the basement of the graben, while the last stage may have been influenced by glacial activity caused by climate change.</description><subject>Alluvial fans</subject><subject>Basins</subject><subject>Cenozoic</subject><subject>China</subject><subject>Climate change</subject><subject>Composition</subject><subject>Conglomerates</subject><subject>Dating</subject><subject>Dating techniques</subject><subject>Drainage systems</subject><subject>Electron paramagnetic resonance</subject><subject>Electron spin</subject><subject>ESR and paleomagnetic dating</subject><subject>Evolution</subject><subject>Glaciers</subject><subject>Glaciohydrology</subject><subject>Graben</subject><subject>initial rifting age</subject><subject>Late Cenozoic strata</subject><subject>Mechanics</subject><subject>Moraines</subject><subject>north trending rifts</subject><subject>OSL</subject><subject>Pleistocene</subject><subject>Provenance</subject><subject>Rifting</subject><subject>Sediment distribution</subject><subject>sedimentary evolution</subject><subject>Sedimentary facies</subject><subject>Sediments</subject><subject>Spin resonance</subject><subject>Strata</subject><subject>Tibet</subject><issn>1000-9515</issn><issn>1755-6724</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNqFkL9OwzAQhyMEEqUws1piJa3_xE4zVqEUpEogWgYmy0ns4Cq1WycBlYlH4Bl5EhyCEBtezjp9vzvdFwTnCI6Qf2MUUxqyGEcjROiEHQSD386h_0MIw4Qiehyc1PUaQkYZooOgWYhGglQa-2Z1Dpay0BtpGuH2YPZiq7bR1gCrwL0onf58_7hq7U6bEqQWlE5k0lyCpW2bZ-kMmJmiQ59EYU3p2XlbteBBq-YPs9KZbE6DIyWqWp791GHweD1bpTfh4m5-m04XYU4QY2EicSSJIqpAkwnGlDBJaRJHBKsMFQwKKiImCVJZhnCcs4Lmyp8lKGVYsBiRYXDRz906u2tl3fC1bZ3xKzmGMWQIJzj21Lincmfr2knFt05vvAGOIO_U8k4k70Tyb7U-wfrEq67k_j-cT9P5sg9-Ac3afFI</recordid><startdate>201806</startdate><enddate>201806</enddate><creator>HA, Guanghao</creator><creator>WU, Zhonghai</creator><creator>HE, Lin</creator><creator>WANG, Shubing</creator><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H96</scope><scope>KR7</scope><scope>L.G</scope></search><sort><creationdate>201806</creationdate><title>Late Cenozoic Sedimentary Evolution of Pagri‐Duoqing Co graben, Southern End of Yadong‐Gulu Rift, Southern Tibet</title><author>HA, Guanghao ; WU, Zhonghai ; HE, Lin ; WANG, Shubing</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3166-9e24e3f3fd18822536e5597432fb1d60a5a46e31fbb127c6d5cf656a5562a6713</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Alluvial fans</topic><topic>Basins</topic><topic>Cenozoic</topic><topic>China</topic><topic>Climate change</topic><topic>Composition</topic><topic>Conglomerates</topic><topic>Dating</topic><topic>Dating techniques</topic><topic>Drainage systems</topic><topic>Electron paramagnetic resonance</topic><topic>Electron spin</topic><topic>ESR and paleomagnetic dating</topic><topic>Evolution</topic><topic>Glaciers</topic><topic>Glaciohydrology</topic><topic>Graben</topic><topic>initial rifting age</topic><topic>Late Cenozoic strata</topic><topic>Mechanics</topic><topic>Moraines</topic><topic>north trending rifts</topic><topic>OSL</topic><topic>Pleistocene</topic><topic>Provenance</topic><topic>Rifting</topic><topic>Sediment distribution</topic><topic>sedimentary evolution</topic><topic>Sedimentary facies</topic><topic>Sediments</topic><topic>Spin resonance</topic><topic>Strata</topic><topic>Tibet</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>HA, Guanghao</creatorcontrib><creatorcontrib>WU, Zhonghai</creatorcontrib><creatorcontrib>HE, Lin</creatorcontrib><creatorcontrib>WANG, Shubing</creatorcontrib><collection>CrossRef</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Acta geologica Sinica (Beijing)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>HA, Guanghao</au><au>WU, Zhonghai</au><au>HE, Lin</au><au>WANG, Shubing</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Late Cenozoic Sedimentary Evolution of Pagri‐Duoqing Co graben, Southern End of Yadong‐Gulu Rift, Southern Tibet</atitle><jtitle>Acta geologica Sinica (Beijing)</jtitle><date>2018-06</date><risdate>2018</risdate><volume>92</volume><issue>3</issue><spage>972</spage><epage>987</epage><pages>972-987</pages><issn>1000-9515</issn><eissn>1755-6724</eissn><abstract>The north trending rifts in southern Tibet represent the E–W extension of the plateau and confirming the initial rifting age is key to the study of mechanics of these rifts. Pagri–Duoqing Co graben is located at southern end of Yadong–Gulu rift, where the late Cenozoic sediments is predominately composed of fluvio‐lacustrine and moraine. Based on the sedimentary composition and structures, the fluvio‐lacustrine could be divided into three facies, namely, lacustrine, lacustrine fan delta and alluvial fan. The presence of paleo‐currents and conglomerate components and the provenance of the strata around the graben indicate that it was Tethys Himalaya and High Himalaya. Electron spin resonance (ESR) dating and paleo‐magnetic dating suggest that the age of the strata ranges from ca. 1.2 Ma to ca. 8 Ma. Optically stimulated luminescence (OSL) dating showed that moraine in the graben mainly developed from around 181–109 ka (late Middle Pleistocene). Combining previous data about the Late Cenozoic strata in other basins, it is suggested that 8–15 Ma may be the initial rifting time. Together with sediment distribution and drainage system, the sedimentary evolution of Pagri could be divided into four stages. The graben rifted at around 15–8 Ma due to the eastern graben‐boundary fault resulting in the appearance of a paleolake. Following by a geologically quiet period about 8–2.5 Ma, the paleolake expanded from east to west at around 8–6 Ma reaching its maximum at ca. 6 Ma. Then, the graben was broken at about 2.5 Ma. At last, the development of the glacier separated the graben into two parts that were Pagri and Duoqing Co since the later stages of the Middle Pleistocene. The evolution process suggested that the former three stages were related to the tectonic movement, which determined the basement of the graben, while the last stage may have been influenced by glacial activity caused by climate change.</abstract><cop>Richmond</cop><pub>Wiley Subscription Services, Inc</pub><doi>10.1111/1755-6724.13586</doi><tpages>16</tpages><edition>English ed.</edition></addata></record> |
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subjects | Alluvial fans Basins Cenozoic China Climate change Composition Conglomerates Dating Dating techniques Drainage systems Electron paramagnetic resonance Electron spin ESR and paleomagnetic dating Evolution Glaciers Glaciohydrology Graben initial rifting age Late Cenozoic strata Mechanics Moraines north trending rifts OSL Pleistocene Provenance Rifting Sediment distribution sedimentary evolution Sedimentary facies Sediments Spin resonance Strata Tibet |
title | Late Cenozoic Sedimentary Evolution of Pagri‐Duoqing Co graben, Southern End of Yadong‐Gulu Rift, Southern Tibet |
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