Laser probe 40Ar/39Ar dating for quartz from auriferous quartz veins in the Shihu gold deposit, western Hebei Province, North China

2010 ◽  
Vol 29 (4) ◽  
pp. 438-445 ◽  
Author(s):  
Ye Cao ◽  
Shengrong Li ◽  
Huafeng Zhang ◽  
Chong Ao ◽  
Zhenzhen Li ◽  
...  
Keyword(s):  
Gold Deposit ◽  
North China ◽  
Hebei Province ◽  
Laser Probe ◽  
Quartz Veins

Fluid Inclusions and their Geological Significance of Huajian Gold Deposit, Hebei Province, China

2014 ◽  
Vol 962-965 ◽  
pp. 277-281
Author(s):  
Cheng Long Shi ◽  
Yang Song ◽  
Jian Zhong Hu
Keyword(s):  
Gold Deposit ◽  
North China ◽  
Gold Mineralization ◽  
Hebei Province ◽  
North China Block ◽  
Quartz Veins ◽  
Low Salinity ◽  
The North ◽  
Ore Bodies ◽  
Metallogenic Belt

The Huajian gold deposit is located in the metallogenic belt of the northern part of the North China block. This deposit's ore bodies are mainly hosted in metamorphosed Neoarchean and Mesoproterozoic sedimentary rocks, of which Mesozoic volcano-intrusive complexes are closely associated with the Gold mineralization. The FIs of the Huajian deposit are primarily aqueous FIs with minor gas FIs. The pure gas or liquid FIs are very few. The ore-forming fluids were characterised by moderate–low temperature, low salinity and high oxygen fugacity and belonged to an H2O–NaCl ± CO2system. The FIs in quartz veins primarily developed in temperature intervals of 202–380°C, 191–407°C and 170–307°C., corresponding to salinities of 3.85wt.% to 11.23 wt.%, 3.69wt.% to 10.99 wt.% and 2.06wt.% to 17 wt.% NaCl eq.., respectively. The trapping pressures of the FIs from high temperature fluids in the quartz veins are 10-90 MPa, corresponding to depths of 1.0–10 km, assuming a density of the overlying rocks of 0.54 g/cm3–0.98 g/cm3. Multiple stages of phase separation or immiscibility of ore-forming fluid was critical for the formation of the Huajian deposit.

Significance of zircon trace element geochemistry, the Shihu gold deposit, western Hebei Province, North China

2011 ◽  
Vol 29 (3) ◽  
pp. 277-286 ◽  
Author(s):  
Ye CAO ◽  
Shengrong LI ◽  
Huafeng ZHANG ◽  
Xiaobin LIU ◽  
Zhenzhen LI ◽  
...  
Keyword(s):  
Trace Element ◽  
Gold Deposit ◽  
North China ◽  
Hebei Province ◽  
Trace Element Geochemistry ◽  
Element Geochemistry

scholarly journals Minimum critical thickness of dike for ore-bearing fluid injection: A new approach applied to the Shihu gold deposit, Hebei Province, North China

2012 ◽  
Vol 3 (5) ◽  
pp. 717-728 ◽  
Author(s):  
Dedong Li ◽  
Yuwang Wang ◽  
Jingbin Wang ◽  
Zhaohua Luo ◽  
Jiulong Zhou ◽  
...  
Keyword(s):  
Gold Deposit ◽  
North China ◽  
Critical Thickness ◽  
Hebei Province ◽  
Fluid Injection ◽  
New Approach

Thermoluminescence of quartz from Shihu gold deposit, western Hebei province, China: some implications for gold exploration

2010 ◽  
Vol 2 (4) ◽  
Author(s):  
Ye Cao ◽  
Shengrong Li ◽  
Meijuan Yao ◽  
Huafeng Zhang
Keyword(s):  
Gold Deposit ◽  
Cross Sections ◽  
North China Craton ◽  
North China ◽  
Mineral Exploration ◽  
Gold Deposits ◽  
Quartz Veins ◽  
The North ◽  
Indicator Mineral ◽  
Gold Bearing

AbstractThermoluminescence (TL) of monomineralic separates have been widely used in various geosciences fields in order to trace the thermal history and aid in prospecting for gold deposits. Quartz is a ubiquitous mineral in the Shihu gold deposit, which is situated in the northern part of the Taihang orogenic belt in the North China craton (NCC). The deposit is hosted by ductile-brittle faults within an Archean metamorphic core complex of the Fuping Group. This deposit is characterized by gold-bearing quartz-polymetallic sulfides and quartz veins. New TL results have been obtained for quartz, in which four type-TL glow curves were identified. The gold-bearing quartz present type III glow curves that consist of two peak glow curves at the middle and high peak temperatures with the similar TL intensity. In addition, the cross-sections of peak temperatures and TL intensity highlight the valuable area where the Au-bearing quartz present weak TL intensity and low-middle peak temperatures. Our results significantly enhance the usefulness of quartz in metallogenic studies of the North China craton and as an indicator mineral in mineral exploration of the Taihang Mountain region.

scholarly journals A Giant Ostrich from the Lower Pleistocene Nihewan Formation of North China, with a Review of the Fossil Ostriches of China

Diversity ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 47
Author(s):  
Eric Buffetaut ◽  
Delphine Angst
Keyword(s):  
Geographical Distribution ◽  
Late Pleistocene ◽  
North China ◽  
Hebei Province ◽  
Early Pleistocene ◽  
Wide Geographical Distribution ◽  
Lower Pleistocene ◽  
The Crimea

A large incomplete ostrich femur from the Lower Pleistocene of North China, kept at the Muséum National d’Histoire Naturelle (Paris), is described. It was found by Father Emile Licent in 1925 in the Nihewan Formation (dated at about 1.8 Ma) of Hebei Province. On the basis of the minimum circumference of the shaft, a mass of 300 kg, twice that of a modern ostrich, was obtained. The bone is remarkably robust, more so than the femur of the more recent, Late Pleistocene, Struthio anderssoni from China, and resembles in that regard Pachystruthio Kretzoi, 1954, a genus known from the Lower Pleistocene of Hungary, Georgia and the Crimea, to which the Nihewan specimen is referred, as Pachystruthio indet. This find testifies to the wide geographical distribution of very massive ostriches in the Early Pleistocene of Eurasia. The giant ostrich from Nihewan was contemporaneous with the early hominins who inhabited that region in the Early Pleistocene.

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