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词汇 Conodont Alteration Index
分类 英语词汇 英语翻译词典
释义

Conodont Alteration Index

原声例句
PBS地球-动物趣闻

With this scale, called the Conodont Alteration Index, geologists can use the color of a conodont that they find, to figure out how hot the surrounding rock once was.

有了这个称为牙形石改变指数的尺度,地质学家可以使用他们发现的牙形石的颜色来计算周围岩石曾经有多热。

英语百科

Conodont Alteration Index

The Conodont Alteration Index (CAI) is used to estimate the maximum temperature reached by a sedimentary rock using thermal alteration of conodont fossils. Conodonts in fossiliferous carbonates are prepared by dissolving the matrix with acid, since the conodonts are composed of apatite and thus do not dissolve. The fossils are then compared to the index under a microscope.

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