geochemical index

基本解釋

The strength center of all elements overlapped is considered as an important index in optimum estimate of Au geochemical abnormity.
金異常優(yōu)選應(yīng)把各異常元素的濃集中心是否重疊作為重要指標(biāo)來考慮。
Exploration degree of Tarim Basin, however, is not high, so effective source rock distribution cannot be precisely defined only by geochemical index of the well sites.
而塔里木盆地勘探程度不高，僅憑井點(diǎn)的地化指標(biāo)，是不能準(zhǔn)確圈定有效烴源巖分布的。
Vulnerability is controlled by the groundwater flow system and geochemical system and can be assessed with the subjective index method, statistical or process-based method and integrated method.
其主要評(píng)價(jià)方法有主觀分級(jí)評(píng)價(jià)法、統(tǒng)計(jì)或基于過程的評(píng)價(jià)法和綜合評(píng)價(jià)法三大類。