Key Laboratory of Nuclear Techniques in Geosciences of Sichuan Province

Chengdu, China

Key Laboratory of Nuclear Techniques in Geosciences of Sichuan Province

Chengdu, China

Time filter

Source Type

Song H.,Chengdu University of Technology | Song H.,Key Laboratory of Nuclear Techniques in Geosciences of Sichuan Province | Xu Z.,Chengdu University of Technology | Xu Z.,Key Laboratory of Nuclear Techniques in Geosciences of Sichuan Province | And 7 more authors.
Geotectonica et Metallogenia | Year: 2015

The Jiangnan Orogenic Belt in China is characterized by abundant granitoids, which are indication of crust-mantle interaction and can be used to track the tectonic evolution of the orogen. As the representative of the southwest section of the Jiangnan Orogenic Belt, the Neoproterozoic Motianling granitic pluton in northern Guangxi is located in the southwestern section of the Jiangnan Orogenic Belt between the Yangtze Block and the Cathaysia Block in South China. In this work, we present new geochemical and LA-ICP-MS zircon U-Pb data for the igneous rocks from the Motianling granitic pluton to track the tectonic evolutionary history of the orogeny. LA-ICP-MS U-Pb dating results of zircons, particularly the inheritable magmatic zircons, show that the granitoids are products of the anatexis of the upper crust, namely, the Sibao Group as the main source material. By integrating the previous data including the geochronological dating results, we suggest that the Jiangnan orogeny underwent a complicate history in the Jinning epoch, which is divided into the main collisional orogeny stage (870-835 Ma), the late stage of collisional orogeny (834-790 Ma) and post-collisional periods (789-740 Ma). The Motianling granitoid are mainly formed in the late stage of collisional period, while the later small-sized granitoid, as an indispensable part of the Motianling granitoid, are mainly formed in the post-collisional period. The features of the Motianling granitoid are in consistence with those of the acid-intrusions in the northeastern and middle sections of the Jiangnan Orogenic Belt. In the three sections of Jiangnan Orogenic Belt, the acid-intermediate magmatism is predominant. And in main collisional period, the magmatism is mainly granodiorite, while in the late stage of collisional and post-collisional periods, it is granite. The spatiotemporal distribution of magmatic rocks, show a tendency of transition from intermediate-acid to acidic, from east to west, from old to new. © 2015, Science Press. All right reserved.


Xu Z.Q.,Chengdu University of Technology | Xu Z.Q.,Key Laboratory of Earth Exploration and Information Technology of the Ministry of Education | Song H.,Chengdu University of Technology | Zhang C.J.,Key Laboratory of Nuclear Techniques in Geosciences of Sichuan Province
Advanced Materials Research | Year: 2013

Xigeda Formation layer, which is widely distributed in Panzhihua area, is researched by the method of γ spectrum measurement. Qinglongshan Xigeda Formation profile is measured by the low-background multi-channelγenergy spectrometer in Panzhihua, the change rules of radioactive elements, including URa, Th, K, Ir and Ira on the profile are analyzed in detail. The characteristics and palaeoenvironmental significance of the sediment layer on the profile is researched by combining the geological features. The results show that the contents of radioactive elements in Xigeda Formation profile reduce obviously from the old to the new layer and change regularly and the radioactive characteristics are consistent to the sediment geological features. All these show that the γ spectrum method is a good one for the study of lake sediment and palaeoenvironment. © (2013) Trans Tech Publications, Switzerland.


Xu Z.Q.,Chengdu University of Technology | Xu Z.Q.,Key Laboratory of Earth Exploration | Li P.,Chengdu University of Technology | Zhang C.J.,Chengdu University of Technology | Zhang C.J.,Key Laboratory of Nuclear Techniques in Geosciences of Sichuan Province
Advanced Materials Research | Year: 2013

In this study, nine samples were collected along the trenches of LANJIAN mine and its water system in order to study the effect of Panzhihua Vanadium Titano-Magnetite on water during mining. Particle sizes of the sediments were analyzed with the laser, mineral composition of the sediments were analyzed with the X-ray diffraction analyzer, the content of Cu, Pb, Zn, Hg, Cd, As, Cr, Co, Ni, Mn, V, Ti, Fe and the Speciation characteristics of part of them were analyzed with the atomic absorption spectrophotometer and ICP-MS. These provide a reference for the environmental governance of mine. © (2013) Trans Tech Publications, Switzerland.


Song H.,Chengdu University of Technology | Song H.,Key Laboratory of Nuclear Techniques in Geosciences of Sichuan Province | Xu Z.,Chengdu University of Technology | Xu Z.,Key Laboratory of Nuclear Techniques in Geosciences of Sichuan Province | And 2 more authors.
Geological Engineering and Mining Exploration in Central Asia - Proceeding Source: The XVIII Kerulien International Conference on Geology, KICG 2013 | Year: 2013

Black rock series, which are widely distributed in Southwestern China, Distribute mainly in the upper Sinian-Lower Cambrian, Silurian system, Permian and Triassic. In the black rock series in Southwestern China, there are many typical deposits, which are with many similar characteristics, has close relationship with the regional deep fault, lithology, magmatism-fluid activity. Numerous Uranium polymetallic deposits, uranium polymetallic occurrences and mineralized spots are widely distributed in the black rock series. In the black rock series in Southwestern China, there are many typical deposits, such as Zoige deposit (510) of Sichuan, Baimadong deposit (504) in Guizhou and Daxin deposit (373) of Guangxi. The Zoige deposit (510) of Sichuan is discussed in this paper. In Southwestern China, higher concentration of uranium in black rock series by sedimentation and Diagenetic stage is the prelude of the black rock series-type uranium deposits. The metallogenic way and scale of reformation and superposition are essential condition for the formation of typical uranium deposits in black rock series. A necessary "trilogy" to the formation of typical uranium polymetallic deposits in black rock series in Southwestern China are Prelude, Reformation and Superposition.


Song H.,Chengdu University of Technology | Song H.,Key Laboratory of Nuclear Techniques in Geosciences of Sichuan Province | Zhang C.,Chengdu University of Technology | Zhang C.,Key Laboratory of Nuclear Techniques in Geosciences of Sichuan Province | And 3 more authors.
Yanshi Xuebao/Acta Petrologica Sinica | Year: 2016

Located in the middle Sanjiang Belts, the study area could be tectonically divided, from west to east, into the Jinshajiang tectonic melange belt, the Yidun island arc and the Zhongzan block. Through systematical field sampling and analysis of the hydrothermal quartz veins from the copper polymetallic deposits in the middle Sanjiang Belts, the content characteristics and distribution pattern of trace-rare earth elements in the quartz veins are discussed in each tectonic unit. Based on geological background and evolution in the study area, the denotative and tracing meaning of the trace elements in quartz vein are further studied. The results show that: 1) There is a positive correlation between the ore-forming elements (e. g. Cu, Zn) and the magmatopile trace elements, which indicates the mineralization is related to magmatic activity. And the trace elements in quartz vein indicate that the ore-forming fluid in Zhongzan block has the closest relationship with the magmatic activity. 2) There is a significant difference that the REE geochemical characteristics in quartz vein from the Zhongzan block compared with the Jinshajiang tectonic melange belt and the Yidun island arc. Formed in the relatively reductive environment, REE in quartz vein from the Zhongzan block accord well with the mantle with the sub-horizontal REE curve and the δEu anomalies, which indicates the main material source of the fluid is likely to be the deep source. 3) According to the geochemical characteristics of trace and rare earth elements in quartz vein, there are similar geochemical characteristics in the metallogenic fluid sources between the Jinshajiang tectonic melange belt and the Yidun island arc for their similar role in the geological evolution history. While there is a remarkable difference that the geochemical characteristics in the Zhongzan block compared with the Yidun island arc. The research results provide evidence for the regional metallogenic events, the genesis of hydrothermal fluid and tectonic evolution, and prospecting suggestions of the copper and polymetallic deposits are proposed for the Sanjiang Belts.


Shi Z.-M.,Chengdu University of Technology | Shi Z.-M.,Key Laboratory of Nuclear Techniques in Geosciences of Sichuan Province | Ni S.-J.,Chengdu University of Technology | Ni S.-J.,Key Laboratory of Nuclear Techniques in Geosciences of Sichuan Province | And 4 more authors.
Geological Bulletin of China | Year: 2012

The heavy metals distribution of near-ground air dust in Chengdu economic region shows that the content of heavy metals in the middle-east part is higher than that in the west part, and that in the heavy industry city is higher than that in the comprehensive city and tourist city. The heavy metal content is totally high in industry and mine influencing areas, and that in the plain terrain of dense population is higher than that in the mountain area. The standard limit method was used to determine the element limiting concentration in near-ground air dust, and the statistics of values below the limiting concentration value was employed to determine the geochemical baseline values, and the values obtained are as follows: As 28.6 mg/kg, Hg 0.63 mg/kg, Cd 2.94 mg/kg, Cr 110 mg/kg, Pb 281 mg/kg, Ni 32 mg/kg and Zn 535 mg/kg. Elements in geochemical baseline of near-ground air dust are related to regional geological background and mineral development. Mining activity, industrial activity and residents' lives constitute the main factors responsible for the relatively high content of artificial disturbance elements of near-ground air dust.


Song H.,Chengdu University of Technology | Song H.,Key Laboratory of Nuclear Techniques in Geosciences of Sichuan Province | Zhang C.,Chengdu University of Technology | Zhang C.,Key Laboratory of Nuclear Techniques in Geosciences of Sichuan Province | And 5 more authors.
Acta Geologica Sinica | Year: 2014

The carbonaceous-siliceous-argillitic rock type uranium deposit in the Zoige area is located in the northeastern margin of the Tibetan Plateau, and has gained much attention of many geologists and ore deposit experts due to its scale, high grade and abundant associated ores. Because of the insufficient reliable dating of intrusive rocks, the relationship between mineralization and the magmatic activities is still unknown. In order to study this key scientific issue and the ore-forming processes of the Zoige uranium ore field, the LA-ICP-MS zircon U-Pb dating of magmatic rocks was obtained: 64.08±0.59 Ma for the granite-prophyry and ∼200 Ma for the dolerite. U-Pb dating results of uraninite from the Zoige uranium ore field are mainly concentrated on ∼90 Ma and ∼60 Ma. According to LA-ICP-MS U-Pb zircon dating, the ages for the dolerite, porphyry granite and granodiorite are 200 Ma, 64.08 Ma approximately and 226.5-200.88 Ma, respectively. This indicates that the mineralization has close relationship with activities of the intermediate-acidic magma. The ages of the granite porphyry are consistent with those uraninite U-Pb dating results achieved by previous studies, which reflects the magmatic and ore-forming event during the later Yanshanian. Based on the data from previous researches, the ore bodies in the Zoige uranium ore field can be divided into two categories: the single uranium type and the uranium with polymetal mineralization type. The former formed at late Cretaceous (about 90 Ma), while the latter, closely related to the granite porphyry, formed at early Paleogene (about 60 Ma). And apart from ore forming elemental uranium, the latter is often associated with polymetallic elements, such as molybdenum, nickel, zinc, etc. © 2014 Geological Society of China.

Loading Key Laboratory of Nuclear Techniques in Geosciences of Sichuan Province collaborators
Loading Key Laboratory of Nuclear Techniques in Geosciences of Sichuan Province collaborators