Late Miocene Thermal Evolution of the Eastern Himalayan Syntaxis as Constrained by Biotite Ar-40/Ar-39 Thermochronology
文献类型：期刊论文
| 作者 | Gong, Junfeng1,2; Ji, Jianging2; Zhou, Jing2; Tu, Jiyao2; Sun, Dongxia2; Zhong, Dalai3; Han, Baofu2 |
| 刊名 | JOURNAL OF GEOLOGY
 |
| 出版日期 | 2015-07-01 |
| 卷号 | 123期号:4页码:369-384 |
| DOI | 10.1086/682951 |
| 文献子类 | Article |
| 英文摘要 | We conducted biotite Ar-40/Ar-39 thermochronological research in the eastern Himalayan syntaxis and the neighboring Mesozoic and early Cenozoic Gangdese batholith belt with the aim of exploring the overall cooling pattern and thermal evolution of this remote region in the Himalayan orogen. A compilation of our newly acquired ages with existing data reveals a new temporal-spatial pattern. First, a temporal gap at 13-7 Ma exists in the cooling history of the study area, with ages ! 7 Ma within the syntaxis and ages 113 Ma in the Gangdese belt. The gap could be a manifestation of a renewed rapid cooling of the syntaxis since similar to 7 Ma within a general region of slow cooling. Second, the isochron contours of the cooling ages have an annulus shape, with a younging trend toward the Namche Barwa-Gyala Peri peaks at the core of the syntaxis at 7-4 and 4-2 Ma and along the margins of the syntaxis at 2-1 Ma. This pattern may be a result of a regionally progressive cooling from the margin to the core of the syntaxis that was punctuated by locally focused accelerated cooling and exhumation. Our new findings imply that the Cenozoic faults bounding the syntaxis controlled the development of the syntaxis. Additionally, new estimates of the exhumati rate suggest that the development of the syntaxis has been accelerating since 7 Ma. |
| WOS关键词 | NAMCHE-BARWA SYNTAXIS ; METAMORPHIC EVOLUTION ; GEOLOGIC EVOLUTION ; RAPID EROSION ; GEOCHRONOLOGY ; EXHUMATION ; OROGEN ; DENUDATION ; DIFFUSION ; HISTORY |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000361552100004 |
| 资助机构 | National Natural Science Foundation of China(41472182 ; National Natural Science Foundation of China(41472182 ; Fundamental Research Funds for the Central Universities(2015QNA3013) ; Fundamental Research Funds for the Central Universities(2015QNA3013) ; 41002067 ; 41002067 ; 40872149 ; 40872149 ; 41472175) ; 41472175) ; National Natural Science Foundation of China(41472182 ; National Natural Science Foundation of China(41472182 ; Fundamental Research Funds for the Central Universities(2015QNA3013) ; Fundamental Research Funds for the Central Universities(2015QNA3013) ; 41002067 ; 41002067 ; 40872149 ; 40872149 ; 41472175) ; 41472175) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/62245]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 作者单位 | 1.Zhejiang Univ, Sch Earth Sci, Hangzhou 310027, Zhejiang, Peoples R China 2.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gong, Junfeng,Ji, Jianging,Zhou, Jing,et al. Late Miocene Thermal Evolution of the Eastern Himalayan Syntaxis as Constrained by Biotite Ar-40/Ar-39 Thermochronology[J]. JOURNAL OF GEOLOGY,2015,123(4):369-384. |
| APA | Gong, Junfeng.,Ji, Jianging.,Zhou, Jing.,Tu, Jiyao.,Sun, Dongxia.,...&Han, Baofu.(2015).Late Miocene Thermal Evolution of the Eastern Himalayan Syntaxis as Constrained by Biotite Ar-40/Ar-39 Thermochronology.JOURNAL OF GEOLOGY,123(4),369-384. |
| MLA | Gong, Junfeng,et al."Late Miocene Thermal Evolution of the Eastern Himalayan Syntaxis as Constrained by Biotite Ar-40/Ar-39 Thermochronology".JOURNAL OF GEOLOGY 123.4(2015):369-384. |
入库方式： OAI收割
来源：地质与地球物理研究所
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