Zircon and monazite U-(Th)-Pb ion microprobe analysis were performed on the Mazeno Pass pluton and the Jutial pluton, two leucogranite bodies within the Nanga Parbat-Haramosh massif (NPHM), Pakistan Himalaya. Zircon rim ages and monazite ages indicate the Mazeno Pass pluton in southwest NPHM intruded at 1.40 ‹ 0.05 Ma; the Jutial pluton, to the north, similarly yields concordant zircon and mona...

The bauxite layer in Western Henan supplies a large number of ores and is useful for studying tectonic movement. In this paper, the samples were selected to carry out LA-ICP-MS detrital zircons U-Pb dating Hf isotope testing. results indicated that with Early Paleozoic ages mainly derived from North Qinling Orogenic Belt. Precambrian age may be basement China Block study support opinion Belt ha...

Taiwan is a young orogenic belt with complex spatial distributions of deformation and earthquakes. We have constructed a three-dimensional finite element model to explore how the interplays between lithospheric structure and plate boundary processes control the distribution of stress and strain rates in the Taiwan region. The model assumes a liberalized power-law rheology and incorporates main ...

North-trending rifts throughout south-central Tibet provide an opportunity to study the dynamics of synconvergent extension in contractional orogenic belts. In this study, we present new data from Dajiamang Tso rift, including quantitative crustal thickness estimates calculated trace/rare earth element zircon data, U-Pb geochronology, and zircon-He thermochronology. These constrain timing rates...

Precambrian quartzo-feldspathic gneiss was encountered at an elevation of —3616 feet in the Herman 1A well drilled in southeastern Erie County, Ohio, by the Amerada Petroleum Corporation. The five samples of this gneiss that were studied exhibit varying degrees of gneissose foliation. In order of decreasing abundance, microcline, plagioclase, quartz, and biotite together account for an average ...

The Central Asian Orogenic Belt (CAOB) is a globally magnificent accretionary orogenic belt that has been formed since the Phanerozoic as result of Paleozoic closing Paleo-Asian Ocean (PAO). transition zone between North China Craton (NCC) and Siberia Plate located in eastern CAOB thoroughly investigated by various seismic investigations. However, other types geophysical approaches lag behind, ...

Precambrian quartzo-feldspathic gneiss was encountered at an elevation of —3616 feet in the Herman 1A well drilled in southeastern Erie County, Ohio, by the Amerada Petroleum Corporation. The five samples of this gneiss that were studied exhibit varying degrees of gneissose foliation. In order of decreasing abundance, microcline, plagioclase, quartz, and biotite together account for an average ...

The study of Planktonic Foraminifera abundances permits to obtain climatic curves on the basis of percentage ratio between tropical and temperate/polar forms. Climatic changes were controlled by several phenomena as: (i) Milankovitch’s cycles, produced by variations of astronomical parameters such as precession, obliquity and eccentricity; (ii) continental geodynamic evolution and orogenic belt...