搜索结果: 1-4 共查到“地球化学 global”相关记录4条 . 查询时间(0.078 秒)
PETM（古新世-始新世极热事件）发生在距今约5600万年前，是新生代以来最强烈的一次全球快速升温事件。在此期间，大量轻碳（13C同位素含量较少的碳）从岩石圈释放到大气海洋系统中，造成了地球表层碳库中的碳同位素组分发生了显著的负漂。学者们认为PETM时期的碳释放触发了（或者至少加剧了）这次全球升温。PETM持续了大约20万年，其中碳释放持续的时间大约为1000-50000年。在千年到万年的时间尺度...
The spatiotemporal responses of Populus euphratica to global warming in Chinese oases between 1960 and 2015
Populus euphratica annual growing season global warming responses to climate change Chinese oases
2018/4/9
Daily average temperature data from 48 meteorological stations in Chinese oases that are within the distribution area of Populus euphratica were analyzed to determine the spatiotemporal responses of t...
An estimation of the radioactive 35S emitted into the atmospheric from the Fukushima Daiichi Nuclear Power Plant by using a numerical simulation global transport
Fukushima Daiichi nuclear power plant radioactive isotopes sulfate global transport model SPRINTAR
2017/4/11
We present a numerical study carried out with the SPRINTARS model modified to account for the radioactive decay of 35S compounds emitted from the Fukushima Daiichi nuclear power plant station after th...
Three global carbon isotope shifts in the Silurian of Podolia (Ukraine):stratigraphical implications
carbon isotopes correlation Podolia Silurian stratigraphy Ukraine
2009/10/21
Podolia is a classical Silurian area in the southwestern part of the Ukraine. Shallow to open shelf rocks cropping out there are usually, except for a few dolomitic horizons, highly fossiliferous and ...