Estimation of reservoir water saturation (Sw) is one of the main tasks in well logging. Many empirical equations are available, which are, more or less, based on Archie equation. The present study is an application of Radial Basis Function Neural Network (RBFNN) modeling for estimation of water saturation responses in a carbonate reservoir. Four conventional petrophysical logs (PLs) including D...

The Shiquanhe–Laguoco–Yongzhu–Jiali ophiolite mélange belt in Tibet includes the Laguoco Tso as part of its western segment. Researchers studying evolution Tibetan Plateau and Tethys have taken a keen interest debated relationship between this Bangong–Nujiang belt. However, there is little research field. This study reports rock geochemistry, SIMS (the secondary ion mass spectrometry) zircon U-...

The reconstruction of the proto-type basin and tectono-paleogeography Tarim Basin during Mesozoic is crucial for hydrocarbon exploration, particularly identifying source rocks. This study reconstructs position, thickness, distribution original stratigraphy, shortening amount by structural deformation, sedimentary facies in each period using paleomagnetic data, residual stratigraphy seismic prof...

The Ailaoshan orogenic belt, located in the SE margin of Qinghai–Tibet Plateau, is an important Paleo-Tethys suture zone eastern Sanjiang Tethys tectonic domain. areas Mojiang and Zhenyuan, middle part are key parts Ocean closure collision orogeny. rhyolites outcropped area, granite porphyries Zhenyuan systematically studied for petrology, isotope geochemistry geochronology. Zircon U-Pb geochro...

Continental break-up is an ingredient of plate tectonics and the Wilson cycle. During evolution Tethyan Realm since Paleozoic, a series ribbon-like (micro-)continents are split from Gondwana drifted northwards to Eurasian continent. The initial opening Neo-Tethys Ocean follows typical continental marginal Cimmeria Gondwana, which generally considered be driven by subduction Paleo-Tethyan plate....

Characteristics Colonies of Cyphastrea agassizi are massive, with deeply grooved surfaces, widely-spaced corallites, and a smooth coenosteum. Septae are in three unequal orders, with the first order exsert. May have irregular groove/tubercle formations (Veron, 2000). Colonies are usually only a few inches in diameter (Fenner, 2005). Colonies have a whitish coenosteum, with pale brown or green c...

Male, female and immature stages of Phyllocnistis tethys Moreira & Vargas sp. nov. (Lepidoptera; Gracillariidae) from the Atlantic Rain Forest, coastal mountains of southern Brazil, are described and illustrated, using both optical and scanning electron microscopy. A preliminary analysis of mitochondrial (COI) DNA sequences including putative members of congeneric species is also provided. The ...

The present contribution reevaluates the fossil record of the genus Jaxea (Decapoda: Gebiidea: Laomediidae) and gives an emended diagnosis and an updated description of Jaxea kuemeli based on well preserved material from the lower and middle Miocene strata of Austria, Slovakia and Hungary. The species is distinguished from the extant J. nocturna on the basis of the tooth formula of the cheliped...