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Geosciences
Special Issues
Sedimentology, Stratigraphy, and Diagenesis of Shallow-Water Carbonate Systems
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Sedimentology, Stratigraphy, and Diagenesis of Shallow-Water Carbonate Systems

A special issue of Geosciences (ISSN 2076-3263). This special issue belongs to the section "Sedimentology, Stratigraphy and Palaeontology".

Deadline for manuscript submissions: closed (20 April 2024) | Viewed by 3541

Special Issue Editors

Dr. Giovan Peyrotty

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Guest Editor
Department of Earth Sciences, University of Geneva, 1205 Geneva, Switzerland
Interests: shallow-water carbonate systems; sedimentology; diagenesis; geochemistry
Dr. Lucas Vimpere

E-Mail Website
Guest Editor
Department of Earth Sciences, University of Geneva, 1205 Geneva, Switzerland
Interests: shallow-water carbonate; sedimentology; aeolian; sea level; climate
Prof. Dr. Rossana Martini

E-Mail Website
Guest Editor
Department of Earth Sciences, University of Geneva, 1205 Geneva, Switzerland
Interests: sedimentology; shallow water reefal carbonates; biostratigraphy; foraminifers; palaeoecology; palaeobiogeography

Special Issue Information

Dear Colleagues,

More than any other type of rock, carbonates represent the best archive of marine biotic and environmental conditions through time. In particular, fossil shallow-water carbonate systems allow for gathering a wealth of information on marine ecosystems and their evolution throughout the Phanerozoic. Those systems, known as life-blooming areas, result from the accumulation on the sea floor of various organisms’ shells and skeletons, whose genus, size, shape, abundance, lifestyle, etc., vary through geological times. The wide diversity of species makes them highly important for our understanding of the evolution and development of life as well as the paleoclimatic and/or paleogeographic conditions. Shallow marine carbonates also record various depositional and post–depositional events linked to punctual or cyclic environmental variations over millions of years. For instance, sea–level changes, water geochemistry variations, and climate modifications can indeed be entombed by numerous sedimentological and diagenetic features formed during or after deposition.

For all those reasons, shallow-water carbonates constitute essential records of past marine ecosystems and environmental changes, which provides a capital insight to apprehend current and future global changes. Hence, this Special Issue aims to highlight the importance of carbonate rocks in the geological record by gathering original research on shallow-water carbonate systems within a wide range of topics and geological periods. Multidisciplinary contributions and research involving the application of novel techniques on carbonates (U-Pb dating, REE, etc.) are warmly welcomed.

Encouraged topics related to shallow-water carbonate are (but are not limited to): sedimentology, geochemistry, diagenesis, paleontology, stratigraphy, paleoecology, paleogeography, etc.

Dr. Giovan Peyrotty
Dr. Lucas Vimpere
Prof. Dr. Rossana Martini
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Geosciences is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • shallow-water carbonates
  • carbonate sedimentology
  • carbonate stratigraphy
  • carbonate dating
  • carbonate diagenesis
  • carbonate cement
  • carbonate geochemistry
  • paleoecology
  • paleoclimate
  • paleoenvironment

Published Papers (2 papers)

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Research

27 pages, 44852 KiB  
Article
Holocene Depositional History of Low-Lying Reef-Rim Carbonate Islets of Fakarava Atoll, Northwest Tuamotu, Central South Pacific
by Lucien F. Montaggioni, Bernard Salvat, Edwige Pons-Branchu, Bertrand Martin-Garin, Arnaud Dapoigny, Éric Brunaud, Gilbert Poli and Miri Tatarata
Geosciences 2023, 13(12), 389; https://doi.org/10.3390/geosciences13120389 - 18 Dec 2023
Viewed by 1670
Abstract
Assumptions about the fate of low-lying coral reef islands (atolls) facing global warming are poorly constrained, due to insufficient information on their depositional history. Based on the U/Th dating of 48 coral clasts, the chronostratigraphic analysis of excavated sections through rim islets ( [...] Read more.
Assumptions about the fate of low-lying coral reef islands (atolls) facing global warming are poorly constrained, due to insufficient information on their depositional history. Based on the U/Th dating of 48 coral clasts, the chronostratigraphic analysis of excavated sections through rim islets (motu) at the windward and leeward sides of Fakarava Atoll (Tuamotu, French Polynesia) reveal that the deposition of coral detritus started approximately 2000 years ago. Most of these deposits lie on conglomerate pavements or reef flat surfaces, and are about 4500 to 3000 years old. The islet expansion at the windward sites seems to have operated coevally across the reef rim, from the ocean-facing shore lagoonwards. Meanwhile, well-developed, continuous, elongated, vegetated islets mostly occur along the windward, northeast to southeast coast, and isolated islets, vegetated or not, associated with the dense networks of conglomerates, are common on the leeward, partly submerged, western rim. Islet accretion on the windward rim sides is believed to have been mainly triggered by winter storms and occasional cyclonic events, whilst the leeward atoll parts were most likely shaped by distant-source swells from mid to high latitudes. The projections of the accelerated sea level rise in the future suggest that the long-term islet stability at Fakarava could be altered because the islets have accreted under the conditions of the falling sea level. Full article
(This article belongs to the Special Issue Sedimentology, Stratigraphy, and Diagenesis of Shallow-Water Carbonate Systems)
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17 pages, 7254 KiB  
Article
Signatures of Pleistocene Marine Transgression Preserved in Lithified Coastal Dune Morphology of The Bahamas
by Kat Wilson and David Mohrig
Geosciences 2023, 13(12), 367; https://doi.org/10.3390/geosciences13120367 - 28 Nov 2023
Viewed by 1353
Abstract
The morphology of some lithified wind-blown, carbonate dunes in The Bahamas preserves the signature of erosion from paleo-marine processes: wave-induced swash, scarping, and longshore transport. Digital elevation models were used to distinguish between two dune morphotypes—those disconnected versus connected to beach processes. Dune [...] Read more.
The morphology of some lithified wind-blown, carbonate dunes in The Bahamas preserves the signature of erosion from paleo-marine processes: wave-induced swash, scarping, and longshore transport. Digital elevation models were used to distinguish between two dune morphotypes—those disconnected versus connected to beach processes. Dune sinuosity and upwind slope were quantified and used to interpret which dunes remained beach-attached and subject to marine erosion and processes versus dunes that became disconnected from the shoreline via inland migration or shoreline regression. Disconnected dunes possess low slopes over stoss surfaces with sinuous planforms mimicking their crestlines. Beach-connected foredunes preserve steep, kilometers-long linear upwind faces, which are interpreted to be signatures of beach-dune morphodynamics. Foredune morphology serves as a proxy for shoreline position during past sea-level high-stands, while the basal elevations of their stoss dune toes provide an upper limit on the beach and adjacent sea level. A growing library of digital topography will allow for this tool to be used to interpret global paleo-shoreline positions through time and space. Full article
(This article belongs to the Special Issue Sedimentology, Stratigraphy, and Diagenesis of Shallow-Water Carbonate Systems)
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