- Tytuł:
- Soft-sediment deformation structures in cores from lacustrine slurry deposits of the Late Triassic Yanchang Fm. (central China)
- Autorzy:
-
Yang, R.
van Loon, A. J.
Yin, W.
Fan, A.
Han, Z. - Powiązania:
- https://bibliotekanauki.pl/articles/94445.pdf
- Data publikacji:
- 2016
- Wydawca:
- Uniwersytet im. Adama Mickiewicza w Poznaniu
- Tematy:
-
soft-sediment deformation structures
low-density gravity-flow deposits
Triassic
lacustrine sediments
Ordos basin
China
struktury deformacji
osady miękkie
złoża grawitacyjne o niskiej gęstości
trias
osady jeziorne
zlewnia
Ordos
Chiny - Opis:
- The fine-grained autochthonous sedimentation in the deep part of a Late Triassic lake was frequently interrupted by gravity-induced mass flows. Some of these mass flows were so rich in water that they must have represented slurries. This can be deduced from the soft-sediment deformation structures that abound in cores from these lacustrine deposits which constitute the Yanchang Fm., which is present in the Ordos Basin (central China). The flows and the resulting SSDS were probably triggered by earthquakes, volcanic eruptions, shear stress of gravity flows, and/or the sudden release of overburden-induced excess pore-fluid pressure. The tectonically active setting, the depositional slope and the high sedimentation rate facilitated the development of soft-sediment deformations, which consist mainly of load casts and associated structures such as pseudonodules and flame structures. Sediments with such deformations were occasionally eroded by slurries and became embedded in their deposits.
- Źródło:
-
Geologos; 2016, 22, 3; 201-211
1426-8981
2080-6574 - Pojawia się w:
- Geologos
- Dostawca treści:
- Biblioteka Nauki
Artykuł