RT Journal Article
T1 Sedimentology of the distal fan and lake deposits of the Tianshui- Qinan Basin (Central China): evidences against a possible eolian origin
A1 Alonso Zarza, Ana María
A1 Li, J.
A1 Zhao, Z.
A1 Song, C. H.
A1 Zhang, J.
A1 Wang, X.
A1 Zhang, Y.
AB In this paper we analyze two sections within the Tianshui-Qinan Basin, a closed basin in Central China. The deposits are Miocene and Pliocene in age and in recent times they have been considered as loess. The preliminary sedimentological study indicates a closed lacustrine basin, with a very flat topography in the inner parts. Periodical desiccation and subaerial exposure periods of both mudflats and shallow lakes caused important reworking of the sediments. The lake margins were ramp-like with different energy levels. Low energy lake margins are represented by marls, intraclastic and palus- trine limestones, whereas higher energetic levels are indicated by rippled sands and silts.
PB Sociedad Geológica de España.
SN 1576-5172
YR 2006
FD 2006
LK https://hdl.handle.net/20.500.14352/52438
UL https://hdl.handle.net/20.500.14352/52438
LA spa
NO Ministerio de Economía y Competitividad (MINECO)
DS Docta Complutense
RD 30 mar 2026