气候变化领域集成服务门户(CCPortal): The seismic 8°discontinuity and partial melting in continental mantle

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DOI	10.1126/science.275.5306.1626
	The seismic 8°discontinuity and partial melting in continental mantle
	Thybo H.; Perchuć E.
发表日期	1997
ISSN	0036-8075
起始页码	1626
结束页码	1629
卷号	275 期号:5306
英文摘要	Strong, scattered reflections beyond 8 degrees (8°) offset are characteristic features of all high-resolution seismic sections from the continents. The reflections identify a low-velocity zone below approximately 100 kilometers depth beneath generally stratified mantle. This zone may be caused by partial melting, globally initiated at equal depth in the continental mantle. Solid state is again attained at the Lehmann discontinuity in cold, stable areas, whereas the zone extends to near the 400-kilometer discontinuity in hot, tectonically active areas. Thus, the depth to the Lehmann discontinuity may be an indicator of the thermal state of the continental mantle.
英文关键词	article; data analysis; diagnostic value; geology; image analysis; information processing; priority journal; Lehmann discontinuity; low velocity zone; mantle; partial melting; seismic reflection
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245748
作者单位	Geological Institute, University of Copenhagen, Øster Voldgade 10, DK-1350 Copenhagen K, Denmark; Institute of Geophysics, Polish Academy of Sciences, ul.Ksiȩcia Janusza 64, PL-01452 Warsaw, Poland
推荐引用方式 GB/T 7714	Thybo H.,Perchuć E.. The seismic 8°discontinuity and partial melting in continental mantle[J],1997,275(5306).
APA	Thybo H.,&Perchuć E..(1997).The seismic 8°discontinuity and partial melting in continental mantle.Science,275(5306).
MLA	Thybo H.,et al."The seismic 8°discontinuity and partial melting in continental mantle".Science 275.5306(1997).