干旱区生态环境知识资源中心(Arid): Multi-Proxy Provenance Analyses of the Kingriali and Datta Formations (Triassic-Jurassic Transition): Evidence for Westward Extension of the Neo-Tethys Passive Margin from the Salt Range (Pakistan)

Arid

DOI	10.3390/min11060573
	Multi-Proxy Provenance Analyses of the Kingriali and Datta Formations (Triassic-Jurassic Transition): Evidence for Westward Extension of the Neo-Tethys Passive Margin from the Salt Range (Pakistan)
	Iqbal, Shahid; Wagreich, Michael; Bibi, Mehwish; Jan, Irfan U.; Gier, Susanne
通讯作者	Iqbal, S (corresponding author), Quaid I Azam Univ, Dept Earth Sci, Islamabad 45320, Pakistan. ; Iqbal, S (corresponding author), Univ Vienna, Dept Geol, Althanstr 14, A-1090 Vienna, Austria.
来源期刊	MINERALS
EISSN	2075-163X
出版年	2021
卷号	11 期号:6
英文摘要	The Salt Range, in Pakistan, preserves an insightful sedimentary record of passive margin dynamics along the NW margin of the Indian Plate during the Mesozoic. This study develops provenance analyses of the Upper Triassic (Kingriali Formation) to Lower Jurassic (Datta Formation) siliciclastics from the Salt and Trans Indus ranges based on outcrop analysis, petrography, bulk sediment elemental geochemistry, and heavy-mineral data. The sandstones are texturally and compositionally mature quartz arenites and the conglomerates are quartz rich oligomictic conglomerates. Geochemical proxies support sediment derivation from acidic sources and deposition under a passive margin setting. The transparent heavy mineral suite consists of zircon, tourmaline, and rutile (ZTR) with minor staurolite in the Triassic strata that diminishes in the Jurassic strata. Together, these data indicate that the sediments were supplied by erosion of the older siliciclastics of the eastern Salt Range and adjoining areas of the Indian Plate. The proportion of recycled component exceeds the previous literature estimates for direct sediment derivation from the Indian Shield. A possible increase in detritus supply from the Salt Range itself indicates notably different conditions of sediment generation, during the Triassic-Jurassic transition. The present results suggest that, during the Triassic-Jurassic transition in the Salt Range, direct sediment supply from the Indian Shield was probably reduced and the Triassic and older siliciclastics were exhumed on an elevated passive margin and reworked by a locally established fluvio-deltaic system. The sediment transport had a north-northwestward trend parallel to the northwestern Tethyan margin of the Indian Plate and normal to its opening axis. During the Late Triassic, hot and arid hot-house palaeoclimate prevailed in the area that gave way to a hot and humid greenhouse palaeoclimate across the Triassic-Jurassic Boundary. Sedimentological similarity between the Salt Range succession and the Neo-Tethyan succession exposed to the east on the northern Indian passive Neo-Tethyan margin suggests a possible westward extension of this margin.
英文关键词	Triassic-Jurassic boundary framework mineralogy sediment geochemistry heavy minerals passive margin Neo-Tethys opening Himalayas Salt Range
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000666241700001
WOS关键词	RARE-EARTH-ELEMENTS ; SAN-RAFAEL BLOCK ; SEDIMENTARY-ROCKS ; CRUSTAL EVOLUTION ; TRACE-ELEMENT ; GEOCHEMICAL SIGNATURES ; INDIA IMPLICATIONS ; MASS EXTINCTIONS ; ORGANIC-MATTER ; SOUTH TIBET
WOS类目	Geochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing
WOS研究方向	Geochemistry & Geophysics ; Mineralogy ; Mining & Mineral Processing
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368719
作者单位	[Iqbal, Shahid] Quaid I Azam Univ, Dept Earth Sci, Islamabad 45320, Pakistan; [Iqbal, Shahid; Wagreich, Michael; Bibi, Mehwish; Gier, Susanne] Univ Vienna, Dept Geol, Althanstr 14, A-1090 Vienna, Austria; [Jan, Irfan U.] Univ Peshawar, Natl Ctr Excellence Geol, Peshawar 25130, Khyber Pakhtunk, Pakistan
推荐引用方式 GB/T 7714	Iqbal, Shahid,Wagreich, Michael,Bibi, Mehwish,et al. Multi-Proxy Provenance Analyses of the Kingriali and Datta Formations (Triassic-Jurassic Transition): Evidence for Westward Extension of the Neo-Tethys Passive Margin from the Salt Range (Pakistan)[J],2021,11(6).
APA	Iqbal, Shahid,Wagreich, Michael,Bibi, Mehwish,Jan, Irfan U.,&Gier, Susanne.(2021).Multi-Proxy Provenance Analyses of the Kingriali and Datta Formations (Triassic-Jurassic Transition): Evidence for Westward Extension of the Neo-Tethys Passive Margin from the Salt Range (Pakistan).MINERALS,11(6).
MLA	Iqbal, Shahid,et al."Multi-Proxy Provenance Analyses of the Kingriali and Datta Formations (Triassic-Jurassic Transition): Evidence for Westward Extension of the Neo-Tethys Passive Margin from the Salt Range (Pakistan)".MINERALS 11.6(2021).