EVIDENCE OF A GUADALUPIAN AGE FOR THE KHUFF FORMATION OF SOUTHEASTERN OMAN: PRELIMINARY REPORT

  • LUCIA ANGIOLINI
  • ALDA NICORA
  • HUGO BUCHER
  • DANIEL VACHARD
  • ALAIN PILLEVUIT
  • JEAN-PIERRE PLATEL
  • JACK ROGER
  • AYMON BAUD
  • JEAN BROUTIN
  • HAROUB AL HASHMI
  • JEAN MARCOUX
Keywords:

Abstract

The Guadalupian succession of the Huqf area (Sultanate of Oman) represents a mega-sequence comprising the fluvial terrigenous Gharif Formation and the overlying marine Khuff Formation. The Khuff Fm. is subdivided into four members and is composed of marls and bioclastic limestones. The Khuff Fm. yields a rich fauna of brachiopods, conodonts, foraminifers, bivalves, gastropods, ostracods and cephalopods. The brachiopod fauna of the Khuff Fm. includes strophomenids, productids, orthids and terebratulids. The associated conodont fauna includes Hindeodus excavatus Behnken, Merrilina sp., M. praedivergens Kozur & Mostler, and Sweetina n. sp. (systematic descriptions of conodonts are given in the Paleontological Appendix). Foraminifers are represented by species of Miliolina and Rotaliina. The Khuff Fm. is given a Wordian age, based on brachiopods and conodonts. The depositional environment of the Khuff Fm. of southeastern Oman corresponds to the outer shelf of a large carbonate platform covering most of the Arabian Platform. The Khuff Fm. is interpreted as a major transgressive-regressive cycle related to differential subsidence.

 

Author Biographies

LUCIA ANGIOLINI
ALDA NICORA
HUGO BUCHER
DANIEL VACHARD
ALAIN PILLEVUIT
JEAN-PIERRE PLATEL
JACK ROGER
AYMON BAUD
JEAN BROUTIN
HAROUB AL HASHMI
JEAN MARCOUX
Published
1998-11-30
Section
Articles