Plio/Pleistocene nearshore lacustrine record of Lake Malawi (East Africa)

C. Betzler; U. Ring; F. Schrenk; T. G. Bromage

doi:10.1201/9780203753392

Plio/Pleistocene nearshore lacustrine record of Lake Malawi (East Africa)

C. Betzler, U. Ring, F. Schrenk, T. G. Bromage

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

The onshore part of the northermost halfgraben of the Malawi Rift (Karonga Basin) exhibits Plio/Pleistocene sediments which have been formed on the shoaling side of the rift. The deposits consist of interbedded lacustrine and fluviatile facies. Abundant fossil vertebrate faunas (Schrenk et al., in press) allow to present a rough chronostratigraphy of the basin fill. The succession consists of a large scale transgressive-regressive cycle punctuated by unconformities. Between 8.6 Ma. and 1.5 Ma. distensive movements in the rift triggered subsidence and allowed accumulation of approximately 100 m of sediments. Late Pleistocene (0.55-0.42 Ma.), transtensive movements triggered uplift of the westernmost part of the Karonga Basin. This process is reflected in a major, angular and erosional unconformity.

Original language	English (US)
Title of host publication	Geoscientific Research in Northeast Africa
Publisher	CRC Press
Pages	323-326
Number of pages	4
Edition	eBook
ISBN (Electronic)	9054103183, 9781351445252
ISBN (Print)	9789054103189
DOIs	https://doi.org/10.1201/9780203753392
State	Published - Jan 1 2017

ASJC Scopus subject areas

General Earth and Planetary Sciences

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10.1201/9780203753392

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abstract = "The onshore part of the northermost halfgraben of the Malawi Rift (Karonga Basin) exhibits Plio/Pleistocene sediments which have been formed on the shoaling side of the rift. The deposits consist of interbedded lacustrine and fluviatile facies. Abundant fossil vertebrate faunas (Schrenk et al., in press) allow to present a rough chronostratigraphy of the basin fill. The succession consists of a large scale transgressive-regressive cycle punctuated by unconformities. Between 8.6 Ma. and 1.5 Ma. distensive movements in the rift triggered subsidence and allowed accumulation of approximately 100 m of sediments. Late Pleistocene (0.55-0.42 Ma.), transtensive movements triggered uplift of the westernmost part of the Karonga Basin. This process is reflected in a major, angular and erosional unconformity.",

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AU - Schrenk, F.

AU - Bromage, T. G.

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N2 - The onshore part of the northermost halfgraben of the Malawi Rift (Karonga Basin) exhibits Plio/Pleistocene sediments which have been formed on the shoaling side of the rift. The deposits consist of interbedded lacustrine and fluviatile facies. Abundant fossil vertebrate faunas (Schrenk et al., in press) allow to present a rough chronostratigraphy of the basin fill. The succession consists of a large scale transgressive-regressive cycle punctuated by unconformities. Between 8.6 Ma. and 1.5 Ma. distensive movements in the rift triggered subsidence and allowed accumulation of approximately 100 m of sediments. Late Pleistocene (0.55-0.42 Ma.), transtensive movements triggered uplift of the westernmost part of the Karonga Basin. This process is reflected in a major, angular and erosional unconformity.

AB - The onshore part of the northermost halfgraben of the Malawi Rift (Karonga Basin) exhibits Plio/Pleistocene sediments which have been formed on the shoaling side of the rift. The deposits consist of interbedded lacustrine and fluviatile facies. Abundant fossil vertebrate faunas (Schrenk et al., in press) allow to present a rough chronostratigraphy of the basin fill. The succession consists of a large scale transgressive-regressive cycle punctuated by unconformities. Between 8.6 Ma. and 1.5 Ma. distensive movements in the rift triggered subsidence and allowed accumulation of approximately 100 m of sediments. Late Pleistocene (0.55-0.42 Ma.), transtensive movements triggered uplift of the westernmost part of the Karonga Basin. This process is reflected in a major, angular and erosional unconformity.

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Plio/Pleistocene nearshore lacustrine record of Lake Malawi (East Africa)

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