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目前已经积累了足够多的关于内生作用中钍的地球化学的资料,这就能够判断出在个个类型火成岩中钍的含量及其中的矿物存在形式。至于在岩石和矿物中处于分散的钍的存在形式以及它的迁移和富集过程则知道的就少得多。
So far, enough data have been accumulated on the geochemistry of thoron in endogenesis, which can determine the content of thorium and the mineral forms of these types of igneous rocks. Much less is known about the forms of thorium dispersed in rocks and minerals and their migration and enrichment processes.