Integrated Stratigraphy and Facies Analysis of the Upper Albian-Turonian (Cretaceous) Debarsu Formation (Yazd Block, Central Iran)

被引：0

作者：

Wilmsen, Markus ^{[1
]}

Storm, Marisa ^{[1
]}

Fuersich, Franz Theodor ^{[2
]}

Majidifard, Mahmoud Reza ^{[3
]}

机构：

[1] Senckenberg Nat Hist Sammlungen Dresden, Museum Mineral & Geol, Sekt Palaozool, D-01109 Dresden, Germany

[2] Univ Erlangen Nurnberg, GeoZentrum Nordbayern, Fachgrp PalaoUmwelt, D-91054 Erlangen, Germany

[3] Geol Survey Iran, Tehran, Iran

来源：

STRATI 2013 | 2014年

关键词：

Mid-Cretaceous; Biostratigraphy; Sequence stratigraphy; Homoclinal ramp; Geodynamics;

D O I：

10.1007/978-3-319-04364-7_120

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The upper Albian-Turonian Debarsu Formation in its type area around Haftoman, south of Khur (Central Iran), has been investigated using an integrated approach of detailed logging, biostratigraphic and sequence-stratigraphic dating, and facies analysis based on field observations and microfacies studies. The formation was deposited on a homoclinal carbonate ramp with a basinal area situated towards the north. Numerous shallowing-upward cycles from offshore marl to shallow-water limestones are capped by palaeokarst surfaces, providing evidence of significant relative sea-level changes. Based on the stratigraphic positions of the sequence-bounding unconformities, a predominantly eustatic control of the sedimentary cyclicity is inferred. The major unconformity at the base of the overlying Coniacian-Campanian Haftoman Formation, however, is of tectonic origin.

引用

页码：623 / 627

页数：5