Home > Term: index fossil
index fossil
A fossil that, because of its wide geographic distribution and restricted time range, can be used to identify and date the strata in which it occurs. Compare: guide fossil.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Mining
- Category: General mining; Mineral mining
- Government Agency: USBM
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ผู้สร้าง
- ed.young
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(Milwaukee, United States)