Microtektites and Glassy Microspherules in Loess: Their Discoveries and Implications

来源 :Science in China,Ser.B | 被引量 : 0次 | 上传用户：namedmat123

【摘要】

：

It is first in continental sediment-loess that 16 microtektites and 3 ablated glassy Si-Mg microspherules were found. They occur only in the upper layer of L8,

【作者】

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李春来欧阳自远刘东生安芷生

【机构】

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InstituteofGeology,AcademiaSinica,Beijing100101,PRC,LaboratoryofLoessandQuaternaryGeologyatXi’an,Xi’

【出处】

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Science in China,Ser.B

【发表日期】

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1993年09期

【关键词】

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LOESS microtektite mierospherule impact. loess microtektite mierospherule impact

【基金项目】

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Project supported by the National Natural Science Foundation of China, and Lab of Loess and Quaternary Geology at Xi’an, Academia Sinica.

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论文部分内容阅读

It is first in continental sediment-loess that 16 microtektites and 3 ablated glassy Si-Mg microspherules were found. They occur only in the upper layer of L8, a 40—70-cm horizon above the B/M boundary. The age of deposition is about 0.72 Ma. Microtektite

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Microtektites and Glassy Microspherules in Loess: Their Discoveries and Implications

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