遗迹化石的地质意义

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GEOLOGICAL IMPLICATIONS OF TRACE FOSSILS

摘要: 遗迹化石是古代生物在底层内或底层层面上进行钻穴、行走、栖息、览食、逃跑、隐伏等活动时留下的遗迹。它是化石记录的一部分,也是古生物学组成部分。因此,在地层学及沉积学方面都有一定的意义。

Abstract: Extremely abundant biogenic trace foosils exist within the sediments of all kinds from Late Precambrian to Presentday.ln respect of stratigraphy and sedi-mentology, it is quite meaningful to study them.In addition, trace fossils could. 1.Indicate compactness of sedimentary rocks, 2.Provide some clues to the drrectinns of ancient water currents during sedimentation and, 3.Be used to determine the top and bottom surfaces of rock formation.In this paper, implications of trace fossils are discussed with stress on their application to stratigraphy and sedrmentigraphy and sedimentology.

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