Marine pisolites from Upper Proterozoic carbonates of East Greenland and Spitsbergen
ABSTRACT Upper Proterozoic carbonate successions from central East Greenland (the Limestone‐Dolomite ‘Series’ of the Eleonore Bay Group) and Svalbard (the Backlundtoppen Formation of the Akademikerbreen Group, Spitsbergen, and the Upper Russö Formation of the Raoldtoppen Group, Nordaustlandet) conta...
Published in: | Sedimentology |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
1989
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/j.1365-3091.1989.tb00821.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-3091.1989.tb00821.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-3091.1989.tb00821.x |
id |
crwiley:10.1111/j.1365-3091.1989.tb00821.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/j.1365-3091.1989.tb00821.x 2024-09-09T19:38:38+00:00 Marine pisolites from Upper Proterozoic carbonates of East Greenland and Spitsbergen SWETT, KEENE KNOLL, ANDREW H. 1989 http://dx.doi.org/10.1111/j.1365-3091.1989.tb00821.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-3091.1989.tb00821.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-3091.1989.tb00821.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Sedimentology volume 36, issue 1, page 75-93 ISSN 0037-0746 1365-3091 journal-article 1989 crwiley https://doi.org/10.1111/j.1365-3091.1989.tb00821.x 2024-08-06T04:20:56Z ABSTRACT Upper Proterozoic carbonate successions from central East Greenland (the Limestone‐Dolomite ‘Series’ of the Eleonore Bay Group) and Svalbard (the Backlundtoppen Formation of the Akademikerbreen Group, Spitsbergen, and the Upper Russö Formation of the Raoldtoppen Group, Nordaustlandet) contain thick sequences dominated by pisolites. These rocks were generated in shallow marine enviroments, and the pisoids are essentially oversized ooids. A marine environment is supported by the thickness and lateral extent of the carbonates; by a sedimentary association of pisolites with stromatolites, flake‐conglomerates, calcarenites, calcilutites, microphytolites, and ooids similar to that found in numerous other Proterozoic carbonate successions; by sedimentary structures, including cross‐beds and megaripples that characterize the pisolitic beds; and by microfossils of endolithic cyanobacteria that are specifically comparable to microorganisms that inhabit modern marine ooids of the Bahama Banks. Petrographic features and strontium abundances suggest that the pisoids were originally aragonitic, but neomorphism, silicification, calcitization, and dolomitization have extensively modified original mineralogies and fabrics. The East Greenland and Svalbard pisolitic carbonates reflect similar depositional environments and diagenetic histories, reinforcing previous bio‐, litho‐, and chemostratigraphic interpretations that the two sequences accumulated contiguously in a coastal zone of pisoid genesis which extended for at least 600, and probably 1000 or more, kilometres. Article in Journal/Newspaper East Greenland Greenland Nordaustlandet Svalbard Spitsbergen Wiley Online Library Akademikerbreen ENVELOPE(18.391,18.391,78.718,78.718) Backlundtoppen ENVELOPE(18.232,18.232,78.716,78.716) Greenland Nordaustlandet ENVELOPE(22.400,22.400,79.800,79.800) Svalbard Sedimentology 36 1 75 93 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
ABSTRACT Upper Proterozoic carbonate successions from central East Greenland (the Limestone‐Dolomite ‘Series’ of the Eleonore Bay Group) and Svalbard (the Backlundtoppen Formation of the Akademikerbreen Group, Spitsbergen, and the Upper Russö Formation of the Raoldtoppen Group, Nordaustlandet) contain thick sequences dominated by pisolites. These rocks were generated in shallow marine enviroments, and the pisoids are essentially oversized ooids. A marine environment is supported by the thickness and lateral extent of the carbonates; by a sedimentary association of pisolites with stromatolites, flake‐conglomerates, calcarenites, calcilutites, microphytolites, and ooids similar to that found in numerous other Proterozoic carbonate successions; by sedimentary structures, including cross‐beds and megaripples that characterize the pisolitic beds; and by microfossils of endolithic cyanobacteria that are specifically comparable to microorganisms that inhabit modern marine ooids of the Bahama Banks. Petrographic features and strontium abundances suggest that the pisoids were originally aragonitic, but neomorphism, silicification, calcitization, and dolomitization have extensively modified original mineralogies and fabrics. The East Greenland and Svalbard pisolitic carbonates reflect similar depositional environments and diagenetic histories, reinforcing previous bio‐, litho‐, and chemostratigraphic interpretations that the two sequences accumulated contiguously in a coastal zone of pisoid genesis which extended for at least 600, and probably 1000 or more, kilometres. |
format |
Article in Journal/Newspaper |
author |
SWETT, KEENE KNOLL, ANDREW H. |
spellingShingle |
SWETT, KEENE KNOLL, ANDREW H. Marine pisolites from Upper Proterozoic carbonates of East Greenland and Spitsbergen |
author_facet |
SWETT, KEENE KNOLL, ANDREW H. |
author_sort |
SWETT, KEENE |
title |
Marine pisolites from Upper Proterozoic carbonates of East Greenland and Spitsbergen |
title_short |
Marine pisolites from Upper Proterozoic carbonates of East Greenland and Spitsbergen |
title_full |
Marine pisolites from Upper Proterozoic carbonates of East Greenland and Spitsbergen |
title_fullStr |
Marine pisolites from Upper Proterozoic carbonates of East Greenland and Spitsbergen |
title_full_unstemmed |
Marine pisolites from Upper Proterozoic carbonates of East Greenland and Spitsbergen |
title_sort |
marine pisolites from upper proterozoic carbonates of east greenland and spitsbergen |
publisher |
Wiley |
publishDate |
1989 |
url |
http://dx.doi.org/10.1111/j.1365-3091.1989.tb00821.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-3091.1989.tb00821.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-3091.1989.tb00821.x |
long_lat |
ENVELOPE(18.391,18.391,78.718,78.718) ENVELOPE(18.232,18.232,78.716,78.716) ENVELOPE(22.400,22.400,79.800,79.800) |
geographic |
Akademikerbreen Backlundtoppen Greenland Nordaustlandet Svalbard |
geographic_facet |
Akademikerbreen Backlundtoppen Greenland Nordaustlandet Svalbard |
genre |
East Greenland Greenland Nordaustlandet Svalbard Spitsbergen |
genre_facet |
East Greenland Greenland Nordaustlandet Svalbard Spitsbergen |
op_source |
Sedimentology volume 36, issue 1, page 75-93 ISSN 0037-0746 1365-3091 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-3091.1989.tb00821.x |
container_title |
Sedimentology |
container_volume |
36 |
container_issue |
1 |
container_start_page |
75 |
op_container_end_page |
93 |
_version_ |
1809907542459940864 |