- Tytuł:
- The Mesoproterozoic ‘seismite’ at Laiyuan (Hebei Province, E China) re-interpreted
- Autorzy:
- Van Loon, A. J.
- Powiązania:
- https://bibliotekanauki.pl/articles/94411.pdf
- Data publikacji:
- 2014
- Wydawca:
- Uniwersytet im. Adama Mickiewicza w Poznaniu
- Tematy:
-
seismites
valley-fill
graben sedimentation
Wumishan Formation
Mesoproterozoic
Fangshan geopark
Hebei Province
China
sejsmity
mezoproterozoik
geopark Fang Shan
prowincja Hebei
Chiny - Opis:
- A 1-million m3 breccia near Laiyuan (Hebei Province, E China) occurs as a block-like lithological unit between dolostones 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 seismites. 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.
- Źródło:
-
Geologos; 2014, 20, 2; 139-146
1426-8981
2080-6574 - Pojawia się w:
- Geologos
- Dostawca treści:
- Biblioteka Nauki
Artykuł