The Mesoproterozoic ‘seismite’ at Laiyuan (Hebei Province, E China) re-interpreted
A 1-million m3 breccia near Laiyuan (Hebei Province, E China) occurs as a block-like lithological unit between dolo-stones of the 1.55-1.45 Ga (Early Mesoproterozoic) Wumishan Formation. It has previously been interpreted as a seismite, but it appears not to fulfil any of the commonly accepted crite...
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| Format: | Article |
| Language: | English |
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Sciendo
2014-07-01
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| Series: | Geologos |
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| Online Access: | https://doi.org/10.2478/logos-2014-0012 |
| _version_ | 1818596249759121408 |
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| author | Loon A.J. (Tom) Van |
| author_facet | Loon A.J. (Tom) Van |
| author_sort | Loon A.J. (Tom) Van |
| collection | DOAJ |
| description | A 1-million m3 breccia near Laiyuan (Hebei Province, E China) occurs as a block-like lithological unit between dolo-stones of the 1.55-1.45 Ga (Early Mesoproterozoic) Wumishan Formation. It has previously been interpreted as a seismite, but it appears not to fulfil any of the commonly accepted criteria that jointly are considered diagnostic for seis-mites. Its presence in a graben-like structure with almost vertical bounding fault planes rather indicates an origin as a (submarine) valley fill. As the valley originated by tectonic activity in the form of faulting, the breccia can be considered as a secondary effect of seismic activity, but it does not represent a seismite. |
| first_indexed | 2024-12-16T11:28:55Z |
| format | Article |
| id | doaj.art-63efb987e1234d2ca55a03324151db5e |
| institution | Directory Open Access Journal |
| issn | 2080-6574 |
| language | English |
| last_indexed | 2024-12-16T11:28:55Z |
| publishDate | 2014-07-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Geologos |
| spelling | doaj.art-63efb987e1234d2ca55a03324151db5e2022-12-21T22:33:17ZengSciendoGeologos2080-65742014-07-0120213914610.2478/logos-2014-0012logos-2014-0012The Mesoproterozoic ‘seismite’ at Laiyuan (Hebei Province, E China) re-interpretedLoon A.J. (Tom) Van0Geological Institute, Adam Mickiewicz University, Maków Polnych 16, 61-606 Poznañ, Poland. e-mail: tom.van.loon@wxs.nlA 1-million m3 breccia near Laiyuan (Hebei Province, E China) occurs as a block-like lithological unit between dolo-stones of the 1.55-1.45 Ga (Early Mesoproterozoic) Wumishan Formation. It has previously been interpreted as a seismite, but it appears not to fulfil any of the commonly accepted criteria that jointly are considered diagnostic for seis-mites. Its presence in a graben-like structure with almost vertical bounding fault planes rather indicates an origin as a (submarine) valley fill. As the valley originated by tectonic activity in the form of faulting, the breccia can be considered as a secondary effect of seismic activity, but it does not represent a seismite.https://doi.org/10.2478/logos-2014-0012seismitevalley fillgraben sedimentationwumishan formationmesoproterozoicfangshan geoparkhebei provincechina |
| spellingShingle | Loon A.J. (Tom) Van The Mesoproterozoic ‘seismite’ at Laiyuan (Hebei Province, E China) re-interpreted Geologos seismite valley fill graben sedimentation wumishan formation mesoproterozoic fangshan geopark hebei province china |
| title | The Mesoproterozoic ‘seismite’ at Laiyuan (Hebei Province, E China) re-interpreted |
| title_full | The Mesoproterozoic ‘seismite’ at Laiyuan (Hebei Province, E China) re-interpreted |
| title_fullStr | The Mesoproterozoic ‘seismite’ at Laiyuan (Hebei Province, E China) re-interpreted |
| title_full_unstemmed | The Mesoproterozoic ‘seismite’ at Laiyuan (Hebei Province, E China) re-interpreted |
| title_short | The Mesoproterozoic ‘seismite’ at Laiyuan (Hebei Province, E China) re-interpreted |
| title_sort | mesoproterozoic seismite at laiyuan hebei province e china re interpreted |
| topic | seismite valley fill graben sedimentation wumishan formation mesoproterozoic fangshan geopark hebei province china |
| url | https://doi.org/10.2478/logos-2014-0012 |
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