Morphological and environmental varieties of the Cambrian stromatolites in Western Henan, North China Craton.

Morphological varieties of Cambrian stromatolites in western Henan, North China Craton were essentially related to palaeoenvironmental parameter changes of the marine-floor. Small plexiform, hemispherical-smooth wavy, small columnar, irregular small columnar stromatolites, and stromatolites that sur...

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Main Authors: Yu-Guang Chang, Shi-Yun Qing, Ming-Yue Dai, Song-Hua Chen
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2025-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0319713
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author Yu-Guang Chang
Shi-Yun Qing
Ming-Yue Dai
Song-Hua Chen
author_facet Yu-Guang Chang
Shi-Yun Qing
Ming-Yue Dai
Song-Hua Chen
author_sort Yu-Guang Chang
collection DOAJ
description Morphological varieties of Cambrian stromatolites in western Henan, North China Craton were essentially related to palaeoenvironmental parameter changes of the marine-floor. Small plexiform, hemispherical-smooth wavy, small columnar, irregular small columnar stromatolites, and stromatolites that surrounding flat-pebble conglomerate limestones are identified, in which the last type of stromatolite is unique, and they possess different macromorphology and micromorphology characteristics. A large number of Girvanella fossils, which were distributed in prostrate or horizontal and winding or overlapping patterns, were preserved in the laminae of stromatolites, and the dark laminae were formed by combined effect of Girvanella and precipitation of calcium carbonate. The research elucidates that small plexiform and small columnar stromatolite developed in the supratidal zone, hemispherical-smooth wavy, small columnar stromatolites, and stromatolites that surrounding flat-pebble conglomerate limestones grew in the intertidal zone with weaker hydrodynamic conditions, as well as irregular small columnar stromatolites occurred in subtidal zone. The features of microscopic laminae of stromatolites are influenced by microorganisms and metazoan, the macroscopic morphologies and growth of stromatolites are affected and controlled by terrigenous materials, hydrodynamic conditions and sedimentary substrates.
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spelling doaj-art-88f06dc1965d4be3a0105552ed5a22682025-08-20T03:07:23ZengPublic Library of Science (PLoS)PLoS ONE1932-62032025-01-01203e031971310.1371/journal.pone.0319713Morphological and environmental varieties of the Cambrian stromatolites in Western Henan, North China Craton.Yu-Guang ChangShi-Yun QingMing-Yue DaiSong-Hua ChenMorphological varieties of Cambrian stromatolites in western Henan, North China Craton were essentially related to palaeoenvironmental parameter changes of the marine-floor. Small plexiform, hemispherical-smooth wavy, small columnar, irregular small columnar stromatolites, and stromatolites that surrounding flat-pebble conglomerate limestones are identified, in which the last type of stromatolite is unique, and they possess different macromorphology and micromorphology characteristics. A large number of Girvanella fossils, which were distributed in prostrate or horizontal and winding or overlapping patterns, were preserved in the laminae of stromatolites, and the dark laminae were formed by combined effect of Girvanella and precipitation of calcium carbonate. The research elucidates that small plexiform and small columnar stromatolite developed in the supratidal zone, hemispherical-smooth wavy, small columnar stromatolites, and stromatolites that surrounding flat-pebble conglomerate limestones grew in the intertidal zone with weaker hydrodynamic conditions, as well as irregular small columnar stromatolites occurred in subtidal zone. The features of microscopic laminae of stromatolites are influenced by microorganisms and metazoan, the macroscopic morphologies and growth of stromatolites are affected and controlled by terrigenous materials, hydrodynamic conditions and sedimentary substrates.https://doi.org/10.1371/journal.pone.0319713
spellingShingle Yu-Guang Chang
Shi-Yun Qing
Ming-Yue Dai
Song-Hua Chen
Morphological and environmental varieties of the Cambrian stromatolites in Western Henan, North China Craton.
PLoS ONE
title Morphological and environmental varieties of the Cambrian stromatolites in Western Henan, North China Craton.
title_full Morphological and environmental varieties of the Cambrian stromatolites in Western Henan, North China Craton.
title_fullStr Morphological and environmental varieties of the Cambrian stromatolites in Western Henan, North China Craton.
title_full_unstemmed Morphological and environmental varieties of the Cambrian stromatolites in Western Henan, North China Craton.
title_short Morphological and environmental varieties of the Cambrian stromatolites in Western Henan, North China Craton.
title_sort morphological and environmental varieties of the cambrian stromatolites in western henan north china craton
url https://doi.org/10.1371/journal.pone.0319713
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AT mingyuedai morphologicalandenvironmentalvarietiesofthecambrianstromatolitesinwesternhenannorthchinacraton
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