气候变化领域集成服务门户(CCPortal): A mid-Cretaceous change from fast to slow exhumation of the western Chinese Altai mountains: A climate driven exhumation signal?

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DOI	10.1016/j.jseaes.2020.104387
	A mid-Cretaceous change from fast to slow exhumation of the western Chinese Altai mountains: A climate driven exhumation signal?
	Pullen, Alex; Banaszynski, Matthew; Kapp, Paul; Thomson, Stuart N.; Cai, Fulong
通讯作者	Pullen, A (通讯作者)
发表日期	2020
ISSN	1367-9120
EISSN	1878-5786
卷号	197
英文摘要	The Chinese Altai Mountains in western China are bound by Cenozoic transpressional strike-slip faults, many of which show Quaternary activity. To better understand how Mesozoic-Cenozoic deformation has affected the history of exhumation and uplift of the Chinese Altai Mountains, we collected Paleozoic granitoid samples for apatite fission track and apatite U-Th-Sm/He thermochronology. Central apatite fission track ages for N = 6 samples range from 68 to 104 Ma, whereas apatite U-Th-Sm/He ages range from 56 to 272 Ma for N = 23 samples (n = 80 individual analyses) across four transects in the western Chinese Altai. Our results indicate fast cooling during the late Early Cretaceous followed by slow cooling since. Thermal modeling results suggests < 2 km exhumation has occurred over most of the Chinese Altai since the Paleocene. If significant late Cenozoic surface uplift occurred in the Altai Mountains, as has been proposed, it must have been associated with minimal erosional exhumation. We suggest that the relief of the Chinese Altai largely developed during the late Mesozoic and denudation since has been minimal because of semi-arid climate conditions.
关键词	APATITE (U-TH)/HE THERMOCHRONOMETRY PALEOZOIC TECTONIC HISTORY ZIRCON U-PB JUNGGAR BASIN NW CHINA FISSION TRACKS CENTRAL-ASIA ACCRETIONARY HISTORY CENOZOIC TECTONICS SEDIMENTARY RECORD
英文关键词	Asia; Tectonics; Thermochronology; Altai; Exhumation; Mesozoic
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000538826300005
来源期刊	JOURNAL OF ASIAN EARTH SCIENCES
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259783
推荐引用方式 GB/T 7714	Pullen, Alex,Banaszynski, Matthew,Kapp, Paul,et al. A mid-Cretaceous change from fast to slow exhumation of the western Chinese Altai mountains: A climate driven exhumation signal?[J]. 中国科学院青藏高原研究所,2020,197.
APA	Pullen, Alex,Banaszynski, Matthew,Kapp, Paul,Thomson, Stuart N.,&Cai, Fulong.(2020).A mid-Cretaceous change from fast to slow exhumation of the western Chinese Altai mountains: A climate driven exhumation signal?.JOURNAL OF ASIAN EARTH SCIENCES,197.
MLA	Pullen, Alex,et al."A mid-Cretaceous change from fast to slow exhumation of the western Chinese Altai mountains: A climate driven exhumation signal?".JOURNAL OF ASIAN EARTH SCIENCES 197(2020).