The Naukluft Nappe Complex of south-central Namibia contains several stratigraphic formations that record the environmental and tectonic transitions of the Neoproterozoic, including glaciogenic deposits and basal-. This stratigraphic record has the potential to provide a critical record of the climate, sea-level history, ocean chemistry and time frames over the climate transition of the Marinoan Snowball deglaciation. Upward locations show that the diamictite is overlain by interbedded sandstones, gravels and shales before an abrupt change to laminated dolostone of the shell carbonate.
The lateral and vertical distribution of facies indicates a retreat of the shoreline and glacially derived siliciclastics near the base of the cap. Next, we consider the structural and stratigraphic relationships of the Neoproterozoic units of the Naukluft Mountains to define and contextualize the extent of the terminal Marinoan geologic record. Using a series of reconstructed synchronous and continuous deglaciation models, we evaluate whether the observed sea level patterns in the Naukluft can be fully explained by isostatic isostatic mechanisms driven by the deglaciation.
However, for deglaciations of longer duration, of ∼10–30 Ma, we can trace two distinct intervals of sea-level rise and fall across most of the width of a continental margin, consistent with stratigraphic models observed in the cap carbonate of the Naukluft Mountains. Grotzinger, (2023) Facies and basal carbonate stratigraphy of the Ediacaran cap, Naukluft Mountains, Namibia, Precambrian Research, v.
INTRODUCTION
The structural geology of the Naukluft Nappe Complex and its relationship to the Damara Orogenic Belt, South West Africa/Namibia. New aspects of lithostratigraphic subdivision and correlation of late Profiterian Ozoic to early Cambrian rocks of the southern Damara belt and their correlation with the central and northern Damara belt and the Gariep belt. Nonmonotonic post-deglacial relative sea-level changes in the wake of Marinoan (635 Ma) snowball Earth melting.
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FACIES AND STRATIGRAPHY OF THE BASAL EDIACARAN CAP CARBONATE, NAUKLUFT MOUNTAINS, NAMIBIA
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STRUCTURAL AND LITHOSTRATIGRAPHIC FRAMEWORK OF THE NEOPROTEROZOIC NAUKLUFT NAPPE COMPLEX
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Sequence stratigraphy and sedimentology of the Neoproterozoic Kuibis and Schwarzrand subgroups (Nama Group), southwest Namibia. MELT OF THE MARINOAN SNOWBALL EARTH: THE IMPACT OF DEGLACIATION ON THE SEA-LEVEL HISTORY OF.
MELTING THE MARINOAN SNOWBALL EARTH: THE IMPACT OF DEGLACIATION DURATION ON THE SEA-LEVEL HISTORY OF
CONTINENTAL MARGINS
Derivation of bedrock topography measurement requirements for reducing uncertainty in ice sheet model projections of Thwaites Glacier. Sheet crack cements and early regression in Marinoan (635 million years ago) dolostones: regional benchmarks of vanishing ice sheets?. Snowballing in Africa: intersecting a long-lived Neoproterozoic carbonate platform and its bathyal precursor (NW Namibia).
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