沉积成分对全新世的影响

IF 0.6 4区 工程技术 Q4 ENERGY & FUELS
Yingwei Di, Huan Wang, Yunfei Feng
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引用次数: 0

摘要

黑海湖是东昆仑山地区的一个淡水湖,是对过去 2000 多年气候驱动的水文和环境变化的精确监测。为了重建青藏高原北部的环境,我们研究了黑海湖沉积物的多代理记录。主要分析包括矿物成分(XRD)、矿物形态(ATEM)、地球化学数据(XRF)、底栖生物分析以及基于AMS14C数据的年代框架。全新世 1972 年以来气候寒冷干燥,主要为物理风化,化学风化较弱。在公元前 1352 年和公元前 352 年出现的沉积不连续现象表现为湖泊面积的缩小,这与全球冰川时期极度低温和干燥的气候条件是一致的。通过研究,我们可以得出结论:青藏高原的气候在过去的 2000 年中是不稳定的,在中国温暖的全新世期间,青藏高原发生了极端寒冷和干燥的事件。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Sedimentary Components Responsibilities on the Holocene

Sedimentary Components Responsibilities on the Holocene

Heihai Lake, a freshwater lake in the area of the East Kunlun Mountains is an accurate monitor of climate-driven hydrological and environmental changes during the past 2000 yr BP. In order to reconstruct the environment in the north Tibetan Plateau, we studied the multi-proxy records from Heihai lake sediments. Major analyses comprise mineral composition (XRD), morphology of minerals (ATEM), geochemical data (XRF), Ostracoda analysis and chronological framework based on AMS14C data. Climate was cold and dry since 1972 yr.BP of the Holocene, which was mainly physical weathering and with a weak chemical weathering. The sedimentary discontinuity happened during 1352 yr.BP and 352 yr.BP, is seen as the size of the lake shrink, which is in consistent with the extremely low temperature and dry climate conditions during the global Glacier Time. From the study, we can conclude that the climate of Tibetan plateau was unstable during the last 2000 years, and extremely cold and dry event happened on Tibetan plateau during the warmer Holocene in China.

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来源期刊
Chemistry and Technology of Fuels and Oils
Chemistry and Technology of Fuels and Oils 工程技术-工程:化工
CiteScore
0.90
自引率
16.70%
发文量
119
审稿时长
1.0 months
期刊介绍: Chemistry and Technology of Fuels and Oils publishes reports on improvements in the processing of petroleum and natural gas and cracking and refining techniques for the production of high-quality fuels, oils, greases, specialty fluids, additives and synthetics. The journal includes timely articles on the demulsification, desalting, and desulfurizing of crude oil; new flow plans for refineries; platforming, isomerization, catalytic reforming, and alkylation processes for obtaining aromatic hydrocarbons and high-octane gasoline; methods of producing ethylene, acetylene, benzene, acids, alcohols, esters, and other compounds from petroleum, as well as hydrogen from natural gas and liquid products.
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