Stratigraphy of Palaeocene phosphate pelagic stromatolites (Prebetic Zone, SE Spain)
نویسندگان
چکیده
منابع مشابه
Biostratigraphy of the Aptian–Middle Cenomanian platform to basin domain in the Prebetic Zone of Alicante, SE Spain: calibration between shallow water benthonic and pelagic scales
The biostratigraphy of platform carbonates and adjacent basins outcropping in the Prebetic Zone of Alicante, south-eastern Spain, is presented. With this aim, 42 sections from 13 major outcrops, of Aptian–Middle Cenomanian age, were analysed. Ten biostratigraphic units based upon benthonic foraminifers have been distinguished within this interval. Comparison with other previously published bioz...
متن کاملGlauconite and phosphate peloids in Mesozoic carbonate sediments (Eastern Subbetic Zone, Betic Cordilleras, SE Spain)
AB STRACT: Glauconite and Ca phosphate peloids occur in Jurassic and Cretaceous bioclastic carbonate rocks from pelagic swell sequences of the Algayat-Crevillente Unit (Subbetic Zone). The size and morphology of the peloids are controlled by the bioclasts. The glauconite in both stratigraphic positions is K rich (>0.69 atoms p.f.u.) and shows well-defined 10 AÊ lattice fringes. Poorly crystalli...
متن کاملPlio-pleistocene Lacustrine Stromatolites from Lake Turkana, Kenya: Morphology, Stratigraphy and Stable Isotopes
Abell, P.I., Awramik, S.M., Osborne, R.H. and Tomellini, S., 1982. Plio-Pleistocene lacustrine stromatolites from Lake Turkana, Kenya: morphology, stratigraphy and stable isotopes. Sediment. Geol., 32: 1--26. A sequence of fossil stromatolites from Lake Turkana in Kenya was examined for 51SO and 513C content. These stromatolites, ranging in age from Holocene (~10,000 yrs B.P.) to Middle Pliocen...
متن کاملGeomorphology and stratigraphy of the Ambrona site (central Spain)
The Lower Acheulian site of Ambrona (Fig. 1A)–like the Torralba site 2.5 km south–occupies a singular position in the NW Iberian Range due to its relation with an Tertiary and Quaternary karstic landscape and with three large hydrographic basins of the Iberian Peninsula: those of the rivers Duero and Tajo (both Atlantic) and the Ebro-Jalón Mediterranean basin. Since the Lower Pleistocene, the r...
متن کاملMesozoic thermal history of the Prebetic continental margin (southern Spain): Constraints from apatite fission-track analysis
Apatite fission-track analysis was applied to Triassic and Cretaceous sediments from the South-Iberian Continental Margin to unravel its thermal history. Apatite fission-track age populations from Triassic samples indicate partial annealing and point to a maximum temperature of around 100–110 °C during their post-depositional evolution. In certain apatites from Cretaceous samples, two different...
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ژورنال
عنوان ژورنال: Facies
سال: 2008
ISSN: 0172-9179,1612-4820
DOI: 10.1007/s10347-008-0136-6