COMPUTER-ASSISTED DESIGN OF COMPLEX ORGANIC SYNTHESES

COMPUTER-ASSISTED DESIGN OF COMPLEX ORGANIC SYNTHESES
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DOI:
10.1126/science.166.3902.178
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发表时间:
1969-01-01
期刊:
影响因子:
56.9
通讯作者:
WIPKE, WT
WIPKE, WT
中科院分区:
综合性期刊1区
文献类型:
--
作者:
COREY, EJ;WIPKE, WT

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地震的起源是三维分布的,但普通的地图只能显示两个维度。相对于较大的地表结构,震中线往往是横向的。这不仅适用于深震源地震,也适用于普通的浅层地震。这种横向排列通常与活动区域的横向趋势边界有关,这些边界是由一段时间内的所有已知事件或给定大地震的余震确定的。这两种类型的横向趋势都可能是由于裂缝穿过主要构造造成的。在许多地区,它们与一般区域其他地方明显的替代趋势相平行,其特点是两种主要趋势以高角度相交。这种共轭趋势经常被采用
Earthquake origins are distributed in three dimensions, but ordinary mapping displays only two. Lines of epicenters often trend transversely with respect to the larger surface structures. This is true not only of deep-focus earthquakes but also of ordinary shallow shocks. Such transverse alignments are often associated with transversely trending boundaries of active areas, defined by all known events during an interval, or by the aftershocks of a given large earthquake.Both types of transverse trends are presumably due to fractures cutting across the principal structures. In many areas they parallel alternative trends evident elsewhere in the general region, which is then characterized by two principal trends crossing at a high angle. Such conjugate trends are often taken