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松散海相沉积物中微体化石石化程度的初步探讨
李建华¹
山东海洋学院

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STUDY ON PETRIFACTION OF MICROFOSSILS IN LOOSE DEPOSITS

Abstract:

Observations of thousands of microfossils show that miorofossils are rich in the East China Sea, and the degrees of petrifaction of microfossils are very different. Some of them look like remains of the organisms died not long since, but actually lived more than ten thousands years ago. These microfossils have a lower degrees of the petrifaction. Some of them, however, have a higher petrifaction although they were dead only several hundreds years ago. Microfossil cannot be judged on its appearance. Higher or lower degrees of petrifaction depend mainly on many factors such as temperature, salinity, hydrologic system and topography of the sea floor. Time isn’t the sole factor in the petrifaction of micro-fossils.

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