a continental-scale synthesis of geomorphology, tectonics, and environmental change over the past 180 million years /
First Statement of Responsibility
by Kevin Burke, Yanni Gunnell
.PUBLICATION, DISTRIBUTION, ETC
Place of Publication, Distribution, etc.
Boulder, Colo. :
Name of Publisher, Distributor, etc.
Geological Society of America,
Date of Publication, Distribution, etc.
2008
PHYSICAL DESCRIPTION
Specific Material Designation and Extent of Item
iv, 66 pages :
Other Physical Details
illustrations (some color), maps (some color) ;
Dimensions
29 cm
SERIES
Series Title
Memoir (Geological Society of America) ;
Volume Designation
201
INTERNAL BIBLIOGRAPHIES/INDEXES NOTE
Text of Note
Includes bibliographical references
CONTENTS NOTE
Text of Note
Abstract -- The unique tectonic identity of the African continent: expected effects on the history of its eroding land surface -- General characteristics of the African Surface -- What is the African Surface? -- The African Surface: a composite surface -- Tectonic evolution of Afro-Arabia and its controls on the history of the African Surface -- Structures that influenced local relief on the African Surface during its evolution -- The African Surface in basins that experienced marine incursions between 100- Ma and 34 Ma -- Regional characteristics of the African Surface -- The African Surface in its type area: southern Africa -- History of the concept of the African Surface -- Recent interpretations of the African Surface -- The African Surface in southern Africa: a summary -- West Africa: From Senegal to Cameroon -- Central Africa -- East Africa: the great swell and the rift system -- Northeastern Africa and Arabia -- Summary: regional age brackets for the African Surface
Text of Note
Bauxite occurrences as indices of the African Surface: their value and limitations -- Bauxites ... and bauxites -- Examples of orthobauxites and laterites in Afro-Arabia inherited from the last great bauxite-forming interval, 70-40 Ma -- Staircases of bauxite- and laterite-capped surfaces in their key area: West Africa -- Bauxites in Africa that may have formed since the end of the main bauxite-forming interval, i.e, after 40 Ma -- Synthesis on bauxites and laterites -- The imprint of continental-scale Paleoclimactic variations in Afro-Arabia -- Cretaceous times, 140-65 Ma -- Earlier Cenozoic times, 65-34 Ma -- Early Oligocene to late Pliocene times, 34-2.8 Ma -- Late Pliocene and Quaternary times, since 2.8 Ma -- The African Surface in the post-30 Ma basin-and-swell reference frame -- Burial of the African Surface in Africa's active continental basins -- Topographic uplift of the African Surface on Africa's swells -- Volcanism or absence thereof: its relevance to the African Surface
Text of Note
The African Surface on Africa's swells: general characteristics -- The Great Swell of South Africa -- Implications of the Cenozoic swell model for the history of the Great Escarpments at Africa's continental margins -- Long-lived escarpments close to rifted continental margins? a return to the historical type area of the African Surface in southern Africa -- A new perspective on the Great Escarpment of Southern Africa -- Summary and conclusions