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学科主题: Geology
题名: Does Kamchatka belong to North America? An extruding Okhotsk block suggested by coastal neotectonics of the Ozernoi Peninsula, Kamchatka, Russia
作者: Pedoja, K ; Bourgeois, J ; Pinegina, T ; Higman, B
关键词: Kamchatka ; quaternary marine terraces ; neotectonics ; plate tectonics ; Okhotsk ; Bering Sea
刊名: GEOLOGY
发表日期: 2006
卷: 34, 期:5, 页:353-356
收录类别: sci
部门归属: China Acad Sci, S China Sea Inst Oceanol, Key Lab Marginal Sea Geol, Guangzhou, Peoples R China; China Acad Sci, Guangzhou Inst Geochem, Guangzhou, Peoples R China; Univ Washington, Dept Earth & Space Sci, Seattle, WA 98195 USA; FED, Inst Volcanol & Seismol, Petropavlovsk Kamchatski 683006, Russia
项目归属: 海洋地质
摘要: This paper addresses one part of an outstanding tectonic problem regarding the nature of the plate boundary between Eurasia and North America in northeastern Russia. In this region, the northwestern corner of the Pacific plate interacts either simply with the North American plate, or more complexly with one or more blocks independent of North America. North of this corner, evidence of uplift, tilting, and convergence contradicts the prevailing, simpler model. On the Ozernoi Peninsula, similar to 150 km north of the subducting Pacific plate, marine terraces indicate uplift rates of 0.1 to 0.3 mm/yr, with faster rates to the east. Historic and paleoseismic records provide evidence for recurring tsunamigenic, thrust earthquakes offshore of the Ozernoi Peninsula, the most recent a Mw 7.7 earthquake in 1969. A multiplate model where an eastward-moving Okhotsk block, including most of Kamchatka, is converging with a clockwise- rotating Bering block better explains these observations than does the unbroken North American plate model.
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WOS记录号: WOS:000237312900009
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/4418
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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Pedoja, K; Bourgeois, J; Pinegina, T; Higman, B.Does Kamchatka belong to North America? An extruding Okhotsk block suggested by coastal neotectonics of the Ozernoi Peninsula, Kamchatka, Russia,GEOLOGY,2006,34(5):353-356
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