Morphology and Tectonic Evolution of the East-Central Pacific
Morphology and Tectonic Evolution of the East-Central Pacific
复制标题
中东部太平洋地貌与构造演化
DOI：
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发表时间：
1975
期刊：
影响因子：
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通讯作者：
Stuart M. Smith
中科院分区：
文献类型：
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作者：
J. Mammerickx;R. Anderson;H. W. Menard;Stuart M. Smith
在赤道和南纬40°之间的东太平洋隆起的地图上，显示了9个活动断裂带的位置和走向，以及其他几个可能的位置。复活节岛以西相对较浅的海底区域标志着Herron （1972b）发现的第二个活跃扩散中心。新的数据表明，几个断裂带的片段存在于隆起的两侧，并且可以通过该特征进行关联。化石加拉帕戈斯隆起的新片段已被确定，表明其南部明显比北部更深。在南纬15度，西经120度，东太平洋隆起的地形结构明显不对称：西部比2000米（3750米）浅，面积是隆起峰顶东部的两倍。
Mapping of the East Pacific Rise between the equator and 40° S. shows the location and trend of nine active fracture zones and the probable location of a few more. An area of relatively shallow sea floor west of Easter Island marks a second active spreading center discovered by Herron (1972b). New data indicate that segments of several fracture zones exist on either side of the rise and can be correlated across that feature. New segments of the fossil Galapagos Rise have been identified, indicating that its southern part is significantly deeper than the northern segments. At 15° S., 120° W., the topographic configuration of the East Pacific Rise is markedly asymmetric: the western part is shallower than 2,000 fm (3,750 m) and occupies twice the area of that part to the east of the rise crest.