TOWARDS A PLIOPLEISTOCENE CHRONOSTRATIGRAPHY IN EASTERN BETIC BASINS (SE SPAIN)

被引：10

作者：

BARDAJI, T

GOY, JL

MORNER, NA

ZAZO, C

SILVA, PG

SOMOZA, L

DABRIO, CJ

BAENA, J

机构：

[1] UNIV SALAMANCA, FAC CIENCIAS, DEPT GEOL, E-37008 SALAMANCA, SPAIN

[2] GEOL INST, S-10691 STOCKHOLM, SWEDEN

[3] CSIC, MUSEO NAL CC NAT, DEPT GEOL, E-28006 MADRID, SPAIN

[4] UNIV COMPLUTENSE, CSIC, IGE, E-28040 MADRID, SPAIN

[5] UNIV COMPLUTENSE MADRID, FAC GEOL, DEPT ESTRATIGRAFIA, E-28040 MADRID, SPAIN

来源：

GEODINAMICA ACTA | 1995年 / 8卷 / 02期

关键词：

PLIOPLEISTOCENE; WESTERN MEDITERRANEAN; BETIC CORDILLERAS; CHRONOSTRATIGRAPHY;

D O I：

10.1080/09853111.1995.11105383

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The evolution of Neogene and Quaternary littoral basins in the Eastern Betic Cordillera is largely related to tectonic activity along the Eastern Betic sinistral shear zone. Detailed mapping of sedimentary units in these basins, together with sedimentological and paleomagnetic analysis lead to the proposal of a new chronostratigraphic framework for Pliocene and Quaternary deposits. This chronostratigraphic setting rejects the synchronous character of the ''Pliocene Units'' previously referred to as: ''P.I'' (grey-blue marls), ''P.II'' (yellow calcarenites), and ''P.III'' (variegated silts and clays). Instead, tectonics would have controlled the paleogeographic evolution of the Eastern Betic realms, causing the lithofacies to occur repeated in space and time. The Plio-Pleistocene boundary in these basins is not accompanied by changes in geodynamic behaviour or climatic conditions. According to the paleomagnetic data, these changes occurred at different times during the Pleistocene in the different studied basins.

引用

页码：112 / 126

页数：15