caa a22 4500 469045469 CHVBK 20180323132823.0 cr unu---uuuuu 170328e19921201xx s 000 0 eng 10.1007/BF02536817 doi (NATIONALLICENCE)springer-10.1007/BF02536817 Microfacies of Cambrian Limestones in Jordan [Elektronische Daten] [Rafie Shinaq, Klaus Bandel] Summary: The limestones of the Wadi Nasb Formation of the uppermost Lower Cambrian of Jordan are under- and overlain by massive sandstones of a near-shore facies. Facies analysis is based on samples from an outcrop at the northeastern shore of the Dead Sea and two oil test wells in the Wadi Sirhan Depression in eastern Jordan. Limestones were deposited in the shallow sea and within the coastal tidal area. Cyanobacteria, algae, echinoderms, trilobites and hyoliths have contributed the bulk of the carbonate and phosphatic material composing the Wadi Nasb limestone. Fine-grained facies types are composed of peloidal carbonate muds with laminar and nodular algal and cyanobacterial mats. They formed within a quiet tidallagoonal environment. The coarse grained facies types consist of carbonate sands with layers of sheell debris deposited in crossbeds in an environment with a rich endobenthic fauna. Here most particles were coated by cyanobacterial crusts. Ooids, oncoids and various coated grains are present. Consolidated sediments were commonly eroded within or near to this environment and their remains were integrated within the sands. Diagenesis is reconstructed step by step with deposition, first cementation, aragonite dissolution, compaction, pore filling, formation of pressure solution, growth of dolomite and anhydrite within the calcitic limestone and final fissure formation and filling. Institut für Paläontologie, Universität Erlangen, 1992 Limestones nationallicence Microfacies nationallicence Diagenesis nationallicence Jordan nationallicence Cambrian nationallicence Shinaq Rafie Department of Earth and Environmental Sciences, University of Yarmouk, Irbid, Jordan aut Bandel Klaus Geologisch-Paläontologisches Institut und Museum, Universität Hamburg, Bundesstraße 55, D-2000, Hamburg aut Facies Springer-Verlag 27/1(1992-12-01), 263-283 0172-9179 27:1<263 1992 27 10347 https://doi.org/10.1007/BF02536817 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02536817 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shinaq Rafie Department of Earth and Environmental Sciences, University of Yarmouk, Irbid, Jordan aut NATIONALLICENCE 700 1- Bandel Klaus Geologisch-Paläontologisches Institut und Museum, Universität Hamburg, Bundesstraße 55, D-2000, Hamburg aut NATIONALLICENCE 773 0- Facies Springer-Verlag 27/1(1992-12-01), 263-283 0172-9179 27:1<263 1992 27 10347 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer