Accommodation of East African Rifting Across the Turkana Depression
Accommodation of East African Rifting Across the Turkana Depression
复制标题
图尔卡纳凹陷东非裂谷的调节
DOI:
10.1029/2019jb018469
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Temtime, T.
中科院分区:
文献类型:
--
作者:
Knappe, E.;Bendick, R.;Ebinger, C.;Birhanu, Y.;Lewi, E.;Floyd, M.;King, R.;Kianji, G.;Mariita, N.;Temtime, T.
Geodetic observations in the Turkana Depression of southern Ethiopia and northern Kenya constrain the kinematic relay of extension from a single rift in Ethiopia to parallel rifts in Kenya and Uganda. Global Position System stations in the region record approximately 4.7 mm/year of total eastward extension, consistent with the ITRF14 Euler pole for Nubia‐Somalia angular velocity. Extension is partitioned into high strain rates on localized structures and lower strain rates in areas of elevated topography, as across the Ethiopian Plateau. Where high topography is absent, extension is relayed between the Main Ethiopian Rift and the Eastern Rift across the Turkana Depression exclusively through localized extension on and immediately east of Lake Turkana (up to 0.2 microstrain/year across Lake Turkana). The observed scaling and location of active extension in the Turkana Depression are inconsistent with mechanical models predicting distributed stretching due to either inherited lithospheric weakness or reactivated structures oblique to the present‐day extension direction.
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DOI:
10.1007/bf00251068
发表时间:
1994-12
期刊:
Geologische Rundschau
影响因子:
--
作者:
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通讯作者:
C. Ebinger;A. Ibrahim
影响因子:
2.9
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影响因子:
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作者:
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通讯作者:
Mulugeta, Genene
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
B. Kaeser;A. Kalt;T. Pettke
通讯作者:
T. Pettke
影响因子:
5.8
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