Arid
DOI10.1007/s00445-006-0098-x
Volcanoes of the Tibesti massif (Chad, northern Africa)
Permenter, Jason L.; Oppenheimer, Clive
通讯作者Permenter, Jason L.
来源期刊BULLETIN OF VOLCANOLOGY
ISSN0258-8900
EISSN1432-0819
出版年2007
卷号69期号:6页码:609-626
英文摘要

The Tibesti massif, one of the most prominent features of the Sahara desert, covers an area of some 100,000 km(2). Though largely absent from scientific inquiry for several decades, it is one of the world’s major volcanic provinces, and a key example of continental hot spot volcanism. The intense activity of the TVP began as early as the Oligocene, though the major products that mark its surface date from Lower Miocene to Quaternary (Furon (Geology of Africa. Oliver & Boyd, Edinburgh (trans 1963, orig French 1960), pp 1-377, 1963)); Gourgaud and Vincent (J Volcanol Geotherm Res 129:261-290, 2004). We present here a new and consistent analysis of each of the main components of the Tibesti Volcanic Province (TVP), based on examination of multispectral imagery and digital elevation data acquired from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER). Our synthesis of these individual surveys shows that the TVP is made up of several shield volcanoes (up to 80 km diameter) with large-scale calderas, extensive lava plateaux and flow fields, widespread tephra deposits, and a highly varied structural relief. We compare morphometric characteristics of the major TVP structures with other hot spot volcanoes (the Hawaiian Islands, the Galapagos Islands, the Canary and Cape Verdes archipelagos, Jebel Marra (western Sudan), and Martian volcanoes), and consider the implications of differing tectonic setting (continental versus oceanic), the thickness and velocity of the lithosphere, the relative sizes of main volcanic features (e.g. summit calderas, steep slopes at summit regions), and the extent and diversity of volcanic features. These comparisons reveal morphologic similarities between volcanism in the Tibesti, the Galapagos, and Western Sudan but also some distinct features of the TVP. Additionally, we find that a relatively haphazard spatial development of the TVP has occurred, with volcanism initially appearing in the Central TVP and subsequently migrating to both the Eastern and Western TVP regions.


英文关键词Tibesti volcanic province Tibesti massif TVP ASTER continental hot spot Chad African geology
类型Article
语种英语
国家USA ; England
收录类别SCI-E
WOS记录号WOS:000245490800002
WOS关键词CANARY-ISLANDS ; FRENCH INSTITUTE ; GALAPAGOS ARCHIPELAGO ; CONVECTION PLUMES ; MANTLE PLUMES ; PLATE MOTION ; ORIGIN ; EVOLUTION ; CALDERA ; ASTER
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/153729
作者单位(1)Coll Charleston, Dept Geol & Environm Geosci, Charleston, SC 29425 USA;(2)Univ Cambridge, Dept Geog, Cambridge CB2 3EN, England
推荐引用方式
GB/T 7714
Permenter, Jason L.,Oppenheimer, Clive. Volcanoes of the Tibesti massif (Chad, northern Africa)[J],2007,69(6):609-626.
APA Permenter, Jason L.,&Oppenheimer, Clive.(2007).Volcanoes of the Tibesti massif (Chad, northern Africa).BULLETIN OF VOLCANOLOGY,69(6),609-626.
MLA Permenter, Jason L.,et al."Volcanoes of the Tibesti massif (Chad, northern Africa)".BULLETIN OF VOLCANOLOGY 69.6(2007):609-626.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Permenter, Jason L.]的文章
[Oppenheimer, Clive]的文章
百度学术
百度学术中相似的文章
[Permenter, Jason L.]的文章
[Oppenheimer, Clive]的文章
必应学术
必应学术中相似的文章
[Permenter, Jason L.]的文章
[Oppenheimer, Clive]的文章
相关权益政策
暂无数据
收藏/分享

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。