J
Jeffrey Bruce Jacobs
Researcher at University of Bremen
Publications - 6
Citations - 450
Jeffrey Bruce Jacobs is an academic researcher from University of Bremen. The author has contributed to research in topics: Proterozoic & Metamorphism. The author has an hindex of 6, co-authored 6 publications receiving 425 citations.
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Late Neoproterozoic/Early Palaeozoic events in central Dronning Maud Land and significance for the southern extension of the East African Orogen into East Antarctica
TL;DR: In this paper, the SHRIMP data from Gjelsvikfjella and Muhlig-Hofmann-Gebirge indicate that the metamorphic basement is composed of Grenville-age rocks that are most likely part of the northeastern continuation of the Namaqua-Natal-Maud Belt.
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Timing of Grenville-age vs. Pan-African medium- to high grade metamorphism in western Dronning Maud Land (East Antarctica) and significance for correlations in Rodinia and Gondwana
TL;DR: A comparison of aeromagnetic data and crustal provinces indicates that the Coats Land basement is likely to be composed of pre-Mesoproterozoic basement that was differentially reworked at c. 500 ǫ within the East African/Antarctic Orogen within the Namaqua-Natal-Maud Belt as discussed by the authors.
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New age constraints for Grenville-age metamorphism in western central Dronning Maud Land (East Antarctica), and implications for the palaeogeography of Kalahari in Rodinia
TL;DR: In this article, the SHRIMP data from Gjelsvikfjella and Muhlig-Hofmann-Gebirge (East Antarctica) indicate that the metamorphic basement is composed of Grenville-age rocks that are most likely part of the north-eastern continuation of the Namaqua-Natal-Maud Belt.
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Extensional collapse of the late Neoproterozoic-early Palaeozoic East African-Antarctic Orogen in central Dronning Maud Land, East Antarctica
TL;DR: In this article, SHRIMP data from gabbro zircons of the Zwiesel Gabbro give ages of 521 ± 5.6 and 527±5.1 Ma.
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Late Mesoproterozoic Arc and Back-arc Volcanism in the Heimefrontfjella (East Antarctica) and Implications for the Palaeogeography at the Southeastern Margin of the Kaapvaal-Grunehogna Craton
TL;DR: In this article, the Kottas, Sivorg and Vardeklettane terranes have been identified and a subduction-related volcanic arc (Kottas Arc) along a southerly directed subduction zone which existed from ∼1200 to 1100 Ma is reconstructed.