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2012 Vol. 23, No. 5

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New Research Progress on the Pre-Sinian Tectonic Evolution and Neotectonics of the Huangling Anticline Region, South China
Timothy M
2012, 14(5) doi: 10.1007/s12583-012-0285-y
Abstract:
In this paper the authors briefly introduce and review the new progress of the newly discovered Proterozoic Miaowan ophiolite and Neoproterozoic Huangling granitoids in the southern Huangling anticline in the Yangtze craton, and the tectonic evolution significance of assemblage and breakup of Rodinia and Columbia supercontinent in South China.
Granulite Facies Metamorphic Age and Tectonic Implications of BIFs from the Kongling Group in the Northern Huangling Anticline
Timothy M
2012, 14(5) doi: 10.1007/s12583-012-0286-x
Abstract:
We report preliminary results of a geochemical study on banded iron formations (BIFs) in the Zhaojiayangpo area from the Kongling Group in the northern Huangling anticline, on the northern margin of the Yangtze craton. The CL (cathodoluminescence) images of zircons mostly have sector zoning, fir-tree zoning and patched zoning, and a few show core-rim textures with rims having patched zoning. The calculated formation temperatures using the Ti-in-zircon thermometer are 660-808 degrees C (714 degrees C in average), all...
Geological Features and Deformational Ages of the Basal Thrust Belt of the Miaowan Ophiolite in the Southern Huangling Anticline and Its Tectonic Implications
Timothy M
2012, 14(5) doi: 10.1007/s12583-012-0289-7
Abstract:
The stratigraphic, structural and metamorphic features of the basal thrust belt of the ca. 1.0 Ga Miaowan ophiolite in the southern Huangling anticline, show that it can be divided into three tectono-lithostratigraphic units from north to south: melange/wildflysch rock units, flysch rock units, and sedimentary rock units of the autochthonous (in situ) stable continental margin
Mapping of Planation Surfaces in the Southwest Region of Hubei Province, China-Using the DEM-Derived Painted Relief Model
Timothy M
2012, 14(5) doi: 10.1007/s12583-012-0290-1
Abstract:
Planation surfaces (PS) play a major role in reconstruction of the evolutionary history of landforms in local areas. Thus, objective and consistent mapping of planation surfaces from remotely sensed data (e.g., satellite imagery, digital elevation models (DEMs)) is paramount for interpreting the geomorphological evolution. Due to the lack of dated sedimentary ...
Deepwater Canyons Reworked by Bottom Currents: Sedimentary Evolution and Genetic Model
2012, 14(5) doi: 10.1007/s12583-012-0280-3
Abstract:
Based on multi-beam bathymetric data and 2D high-resolution, multi-channel seismic profiles, combing ODP1148 drilling data, the morphology, internal sedimentary architecture, and evolution pattern of 17 deepwater canyons from the Middle Miocene to present are documented in the northern Baiyun sag (BS), Pearl River Mouth basin (PRMB), and northern ...
New Insights into Petroleum Migration-Accumulation Dynamic Systems and Their Division within Petroleum Systems
Ihsan S
2012, 14(5) doi: 10.1007/s12583-012-0281-2
Abstract:
Since the concept of petroleum migration-accumulation dynamic system (PMADS) was introduced in the 1990s, its definition, division and even denomination have long been in disagreement. This article aims to further discuss and try to clarify this concept and to explore more reasonable approaches to the division of PMADSs on the basis of our studies on petroleum
Geophysical Exploration for Geothermal Resources: An Application of MT and CSAMT in Jiangxia, Wuhan, China
2012, 14(5) doi: 10.1007/s12583-012-0282-1
Abstract:
We present a case study of applying MT (magnetotellurics) and CSAMT (controlled source audio-frequency magnetotellurics) for geophysical exploration in Jiangxia, which is located in new industrial developing suburb, where artificial noises are severe. In order to know deep buried structure, fracture status, and characteristics of underground geothermal development
Define the Energy Cone Threshold and Extent of Tianchi Volcano
2012, 14(5) doi: 10.1007/s12583-012-0283-0
Abstract:
Energy cone is a unique but characteristic slope that describes the extent of deposits left around a volcano by various flowage phenomena, usually regarded as the boundary of pyroclastic and the source region of lahar. The energy cone value is determined as 0.07 by the energy-line model combined with the parameters of plume height and gradient, and
Granulite Facies Metamorphic Age and Tectonic Implications of BIFs from the Kongling Group in the Northern Huangling Anticline (Table)
Timothy M
2012, 14(5) doi: 10.1007/s12583-012-0286-x
Abstract:
We report preliminary results of a geochemical study on banded iron formations (BIFs) in the Zhaojiayangpo area from the Kongling Group in the northern Huangling anticline, on the northern margin of the Yangtze craton. The CL (cathodoluminescence) images of zircons mostly have sector zoning, fir-tree zoning and patched zoning, and a few show core-rim textures with rims having patched zoning. The calculated formation temperatures using the Ti-in-zircon thermometer are 660-808 degrees C (714 degrees C in average), all...
SHRIMP Zircon U-Pb Ages and Geochemical Characteristics of the Neoproterozoic Granitoids in the Huangling Anticline and Its Tectonic Setting
2012, 14(5) doi: 10.1007/s12583-012-0284-z
Abstract:
SHRIMP zircon U-Pb dating of the Neoproterozoic Maoping series (Sandouping (rock suite) granites exposed in the southern part of the Huangling anticline shows that the formation time of Sandouping biotite-hornblende tonalite intrusion, Jinpansi hornblende-biotite tonalite intrusion, and Longtanping monzogranite are 863 +/- 9, 842 +/- 10, and 844 +/- 10 Ma, respectively. Their geochemical features include A/CNK=0.98-1.06, from metaluminous to weakly peraluminous, delta=1.37-1.53, Sm/Nd=0.17-0.24, and Rb-N/Yb-N=1.1-3.62. These ..
Discovery of a Sheeted Dike Complex in the Northern Yangtze Craton and Its Implications for Craton Evolutio
Timothy M
2012, 14(5) doi: 10.1007/s12583-012-0287-9
Abstract:
The Miaowan ophiolite is a highly dismembered ophiolitic complex cropping out near the northern margin of the Yangtze craton. The rocks of this complex consist of, from bottom to top, harzburgite tectonite locally containing podiform chromite, dunite, layered and isotropic gabbro, a sheeted dike complex (SDC), meta-pillow lavas with chert pods and layers...
Sea-Floor Metamorphism Recorded in Epidosites from the ca. 1.0 Ga Miaowan Ophiolite, Huangling Anticline, China
Timothy M
2012, 14(5) doi: 10.1007/s12583-012-0288-8
Abstract:
The epidosites are interpreted to form in upflow zones at the base of ore-forming oceanic hydrothermal systems that vent as black smokers on the sea floor. This study presents new field, major and trace element, and oxygen isotope data for the recently discovered epidosites in the ca. 1.0 Ga Miaowan ophiolite located near the northern margin of the Yangtze craton...
SHRIMP Zircon U-Pb Ages and Geochemical Characteristics of the Neoproterozoic Granitoids in the Huangling Anticline and Its Tectonic Setting (Table
2012, 14(5) doi: 10.1007/s12583-012-0284-z
Abstract:
SHRIMP zircon U-Pb dating of the Neoproterozoic Maoping series (Sandouping (rock suite) granites exposed in the southern part of the Huangling anticline shows that the formation time of Sandouping biotite-hornblende tonalite intrusion, Jinpansi hornblende-biotite tonalite intrusion, and Longtanping monzogranite are 863 +/- 9, 842 +/- 10, and 844 +/- 10 Ma, respectively. Their geochemical features include A/CNK=0.98-1.06, from metaluminous to weakly peraluminous, delta=1.37-1.53, Sm/Nd=0.17-0.24, and Rb-N/Yb-N=1.1-3.62. These ..
Discovery of a Sheeted Dike Complex in the Northern Yangtze Craton and Its Implications for Craton Evolutio
Timothy M
2012, 14(5) doi: 10.1007/s12583-012-0287-9
Abstract:
The Miaowan ophiolite is a highly dismembered ophiolitic complex cropping out near the northern margin of the Yangtze craton. The rocks of this complex consist of, from bottom to top, harzburgite tectonite locally containing podiform chromite, dunite, layered and isotropic gabbro, a sheeted dike complex (SDC), meta-pillow lavas with chert pods and layers...