Heilongjiang Institute of Geological Survey

Harbin, China

Heilongjiang Institute of Geological Survey

Harbin, China

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Li Y.-C.,China University of Geosciences | Wu G.-G.,China University of Geosciences | Jin Z.-Y.,Heilongjiang Institute of Geological Survey | Zhang D.,China University of Geosciences | Yang X.-P.,Heilongjiang Institute of Geological Survey
Geology in China | Year: 2013

The Tongshan Formation is a very important part of Zalantun-Duobaoshan island arc tectonic belt in northern Zalantun area of the Da Hinggan Mountains. The properties, deposition epoch and tectonic environment type of the source area of Tongshan Formation are important links in the study of the island arc tectonic belt, and also constitute an important window in the study of early tectonic evolution of the old Asian Ocean tectonic domain. Studies of fine elastic rocks and petrography of the Tongshan Formation in combination with geochemistry of the main elements and trace elements in fine elastic rocks show that Tongshan Formation was formed in the continental island arc area or active continental margin as well as the nearby places, and the source materials of Tongshan Formation were mainly felsic rocks and migmatitic felsic rocks formed by the transition from the upper crust to the edge of the andesite island arc, with part of the source material probably derived from the mixture of a small amount of passive continental margin material. The LA-MC-ICPMS zircon U-Pb age spectrum characteristics of fine elastic rocks in Tongshan Formation were determined for the first time, and the results show the diversity of the source area of Tongshan Formation. The U-Pb age spectrum contains 566-632Ma and 789-889Ma detrital zircons and, in combination with regional chronologic information, these data suggest that there must have existed the Neoproterozoic crystalline basement and the Neoproterozoic magmatism and metamorphism in this area, which constituted the main provenances of sedimentary rocks in Tongshan Formation. 2543-2705 Ma and 1773-2120 Ma ancient detrital zircons information revealed in the Xing-Meng orogenic belt suggests the probable existence of Precambrian micro-landmass basement, which became the important provenances of sedimentary rocks in Tongshan Formation. According to 572 +5Ma concordant age, in combination with regional contrast, the deposition time of Tongshan Formation was dated at early Ordovician. The research results provide an important basic material for determining the evolution of the early Paleozoic Zalantun-Duobaoshan island arc tectonic belt and also offer a new constraint for the investigation of the continental crustal evolution on the southern margin of the Siberia plate and the researches on tectonodynamics.


Liu C.,China University of Geosciences | Liu C.,Durham University | Deng J.F.,China University of Geosciences | Luo Z.H.,China University of Geosciences | And 5 more authors.
Yanshi Xuebao/Acta Petrologica Sinica | Year: 2014

The Luming super large molybdenite deposit is a newly discovered Mo deposit with more than 890 thousand tons resource at an average grade of 0.084% in the Lesser Xing'an Range. Here we resolved the debate of the magmatism and associated mineralization of the Luming deposit. This paper reports LA-ICP-MS U-Pb zircon, 40 Ar-39 Ar biotite, and Re-Os molybdenite geochronology of Luming granite porphyry (LGP), and Luming granite (LG). Field relationships show that the emplacement of the LG is succeeded by the LGP. Quartz vein and disseminated molybdenite mineralization occurs in the LGP. The geochronology shows that the LGP was formed at 174.0±2Ma(MSWD=3.2). The five molybdenite samples from Luming deposit yield a Re-Os isochron age of 177.8±2.3Ma (MSWD=0.08) and a Re-Os weighted average age of 177.5±1.2Ma (MSWD=0.06). Ar-Ar systematics indicate LG biotite has an age of 175.9 ± 1.1Ma, this indicates the LG was probably formed at ∼ 176Ma. Considering field geology, petrography, and previous studies, we show the batholiths of LG (>176Ma) was formed prior to the LGP (about 174Ma), and the ore-forming intrusive body of Luming metallogenesis of molybdenite is the LGP, but not the batholiths of LG, even though the metallogenesis of molybdenite is coeval or slightly later than LG and LGP. Geochemical characteristics, especially the highly abundance of MgO, high Sr and low Y and diagrams of texture of LG and LGP show the LG and LGP were formed in VAG of subduction setting. We suggests, during early-middle Early-Jurassic, the studied area developed thickened crust and extensive mantle-crust interaction corresponding to the convergence of Monglia-Okhotsk Sea in the west-north, Rohe and Izanaqi Ocean in the east. After that, the batholiths of LG uplifted rapidly because of delamination and the magma of LGP (including molybdenite and magmatic fluids) coming from deeper crust was intrusived into the batholiths of LG in the shallow crust, and then formed the LGP and the Luming molybdenum deposit. Thus, the authors suggest the Luming molybdenite deposit was formed by post-batholith metallogenesis.


Xi X.,China Geological Survey | Yang Z.,China University of Geosciences | Cui Y.,Heilongjiang Institute of Geological Survey | Sun S.,Jilin Institute of Geological Survey | And 2 more authors.
Geoscience Frontiers | Year: 2011

Employing the Unit Soil Carbon Amount (USCA) approach, soil carbon storage was calculated across the Northeast Plain of China based on the Multi-purpose Regional Geochemical Survey conducted in 2004-2006 (MRGS). The results indicated that the soil organic carbon (SOC) storage in topsoil (0-0.2 m), subsoil (0-1 m) and deep soil (0-1.8 m) was 768.1 Mt, 2978.4 Mt and 3729.2 Mt with densities of 3327.8 t/km2, 12,904.7 t/km2 and 16,157.5 t/km 2, respectively. These values were consistent with national averages, whereas the soil carbon densities showed a clear increasing trend from the southern area of the Northeast Plain (Liaoning), to the middle (Jilin) and the northern Plain (Heilongjiang) - particularly in terms of topsoil carbon density, which increased from 2284.2, to 3436.7 and 3861.5 t/km2, respectively. In comparison to carbon data obtained from the Second National Soil Survey in 1984-1986 (SNSS), the topsoil SOC storage values from the MRGS were found to have decreased by 320.59 Mt (29.4%), with an average annual decline of 16.0 Mt (l.73%) over the 20 years. In the southern, middle and northern areas of the plain, soil carbon densities decreased by 1060.6 t/km 2, 1646.4 t/km2 and 1300.2 t/km2, respectively, with an average value of 1389.0 t/km2 for the whole plain. These findings indicate that the decrease in soil carbon density varied according to the different ecosystems and land-use types. Therefore, ratios of soil carbon density were calculated in order to study the carbon dynamic balance between ecosystems, and to further explore distribution characteristics, as well as the sequestration potential of SOC. © 2011, China University of Geosciences (Beijing) and Peking University. Production and hosting by Elsevier B.V. All rights reserved.


Sun G.,Chinese Academy of science | Sun G.,Wuhan University | Sun G.,Heilongjiang Institute of Geological Survey | Chen Y.,Chinese Academy of science | And 5 more authors.
Catena | Year: 2013

Agricultural soil pollution is a serious problem that can endanger ecology, food safety, and human health. The study evaluated the accumulation and distribution of major and trace elements in the agricultural soil of the Gannan area in the northwest Songnen-Plain, a very important base of grain production in northeastern China. To identify the concentrations and sources of pollutants and also to assess the soil environmental quality, a total of 2400 topsoil (0-20cm) samples and 10 subsoil (180-200cm) samples were collected. Then 6 major elements (CaO, Fe2O3, K2O, MgO, Na2O, SiO2), 18 trace elements (As, B, Cd, Co, Cr, Cu, F, Hg, I, Mo, Mn, N, Ni, P, Pb, Se, S, and Zn), pH, and Corg (organic carbon) were analyzed. The accumulation of Cd, Cu, Pb, Zn, Hg, and F was apparent in the agricultural soils. Correlation coefficient analysis showed that most major and trace elements, as well as pH and Corg, were significantly positive correlated in agricultural soil. Principal component analysis (PCA) indicated two main anthropogenic sources for trace elements in agricultural topsoil. The first component including B, Cr, Cu, Mg, Ni, and Zn, represented a mixture of atmospheric deposition and livestock manures; whereas the second component, relating to Ca, F, Cd, Hg, Se, and P, suggested the inorganic fertilizers and lime, as well as agrochemicals. Spatial distribution patterns using GIS contour maps and an integrated soil pollution index were established for the selected metal concentrations. In general, the range of RI (the potential ecological risk index) was from 43.6 to 556, with a mean value of 106, indicating low ecological risk in this study area. This study indicated that more attention should be paid to metal pollution of agricultural soil in the rural area to safeguard both soil and food safety. © 2013.


Qu H.,Heilongjiang Institute of Geological Survey | Li C.-L.,Heilongjiang Institute of Geological Survey | Zhao Z.-H.,Heilongjiang Institute of Geological Survey | Wang Z.,Heilongjiang Institute of Geological Survey | Zhang J.-F.,Heilongjiang Institute of Geological Survey
Geology in China | Year: 2011

The Duobaoshan area in Da Hinggan Mountains is tectonically located in a fold belt between the Songneng Block and the Xing'an Block in the east of the Xingmeng oregenic belt. Large quantities of Neopaleozolc granitic rocks are distributed in this area. This lithology is mainly composed of monzonitic granite and syenogranite. SHRIMP zircon U -Pb dating yielded ages of 309.0 ± 3.0Ma and 299.3 ± 2.8 Ma. Major element analyses show high SiO2 and alkali content, slightly high Al2O3 content and low MgO and CaO content. Trace element studies demonstrate the enrichment of Th, Zr, Rb, Nd, K and depletion of Ba, Sr, P, Ti. The samples are enriched in LREE (light rare earth elements) and depleted in HREE (heavy rare earth elements), suggesting a high degree of fractionation. The granites generally belong to the high -K calc -alkaline series and might have been produced by the magma that had experienced a high degree of crystallization differentiation. Petrological geochemistry shows that the granites are quite similar to S-type granite, with the material source derived from the crust.


Hou J.G.,Heilongjiang Institute of Technology | Chu Y.,Heilongjiang Institute of Geological Survey
Applied Mechanics and Materials | Year: 2013

In this paper, a novel method is proposed by combining of radar clinometry and interferometry to improve the accuracy of digital elevation model (DEM) reconstruction. In synthetic aperture radar (SAR) signal processing, the interferometry method uses a couple of high-coherence SAR complex images and the clinometry method uses only one. On one hand, interferometry-derived DEM is much more accurate in regions of higher coherence than the clinometry one. However, in regions of lower coherence, some pronounced errors are produced with the interferometry method due to phase filtering and unwrapping problems. On the other hand, the clinometry method can produce a more robust DEM result by using the intensity of SAR image. Therefore the clinometryand interferometry-derived DEM is fused by introducing a user-defined weighting factor, where in regions of higher coherence, the DEM results with the interferometry method are remained, and in regions of lower coherence, the interferometry-derived DEM is updated with the clinometry-derived one. Finally, the experimental results with Envisat data show the effectiveness of our approach. © (2013) Trans Tech Publications, Switzerland.


Xia X.,China University of Geosciences | Yang Z.,China University of Geosciences | Cui Y.,Heilongjiang Institute of Geological Survey | Li Y.,Heilongjiang Institute of Geological Survey | And 2 more authors.
Journal of Geochemical Exploration | Year: 2014

China's national "Multi-Purpose Regional Geochemical Survey" (MPRGS) project provided high density data (1sample/km2) for the assessment of soil heavy metal (e.g., Cd, Hg, Pb, and As) pollution in most agricultural regions in China. As a further study, the fluxes of the soil heavy metal input/output pathways (e.g., atmospheric deposition, irrigation water, fertilization, crop or pasture harvesting, seepage water, and surface water) were observed and evaluated on the southern Song-nen Plain in Heilongjiang Province. It was found that at present, greater than 95% of the total area has soil Cd, Hg, Pb, As, Cu, Zn, Ni, and Cr concentrations lower than the uncontaminated concentration limits given by Environmental Quality Standard of Soil of PR China (GB15618-1995). So, as a whole, the study area is a clean region for agricultural development. Atmospheric deposition, rather than irrigation and fertilization, is the dominant element source of the soil heavy metals (Cd, Hg, As, Cu, Pb, and Zn), accounting for 78-98% of the total input fluxes. Soil seepage water, other than harvesting and surface water runoff, is the dominant soil element output pathway. The observed fluxes from the pathways were evaluated by calculating the changes of the heavy metal concentrations caused by them given that the fluxes keep steady for a certain years, i.e., 5, 10, 15, and 20years, and there is no other potential pathways. It was shown that the soil in the study area as a whole will remain uncontaminated with little heavy metal hazards in the following decades, i.e., the observed six pathways will not cause severe accumulation or heavy metal hazards in the study area. © 2013 Elsevier B.V.


Yin Z.,LIAONING Technical University | Zhang Y.,Heilongjiang Institute of Geological Survey | Du Y.,LIAONING Technical University
Jilin Daxue Xuebao (Diqiu Kexue Ban)/Journal of Jilin University (Earth Science Edition) | Year: 2013

The rhyolites of the Early Cretaceous Shangkuli Formation in northern Daxing'anling belong to high-K calc-alkaline volcanic rock series characterized by rich-alkaline (K2O+Na2O>6.10%), high K2O (3.25%-5.30%) and high ratios of K2O/Na2O (0.67-2.48). These samples show strong enrichment in large ion lithophile elements (LILE) and in light rare earth elements (LREE). But the elements of Ba, Sr, Nb, P, and Ti are apparently depleted. The higher Th content and high Rb/Ba, Rb/Sr and Zr/Ba ratios of the rhyolites suggested a continental intraplate rifted setting related to the extension stage after the formation of Mongolia-Okhotsk orogenic belt. The current data indicate that the parental magma for rhyolites could be the products of the lower crust partial melting.


Li C.-L.,Heilongjiang Institute of Geological Survey | Qu H.,Heilongjiang Institute of Geological Survey | Zhao Z.-H.,Heilongjiang Institute of Geological Survey | Xu G.-Z.,Heilongjiang Institute of Geological Survey | And 2 more authors.
Geology in China | Year: 2013

The Huolongmen area in Heilongjiang Province is tectonically located at the juncture between the Songnen Block and the Xing'an Block in the east of the Xingmeng oregenic belt. Large volumes of Neopaleozolc granitic rocks are distributed in this area. The granitic rocks are composed mainly of monzogranite, syenogranite and alkali -feldspar granite. The zircon U -Pb SHRIMP dating of monzonite granite yielded the concordant age of 351.5 ± 3.5Ma. Major element analyses show high SiO2 (73.38%∼78.68%)and alkali content (K2O+Na2O=6.58%∼9.61%), slighdy high Al 2O3(11.25%∼14.50%)content and low MgO(0.1%∼0.57%) and CaO (0.07%∼0.89%) content. Trace element studies demonstrate the enrichment of Th, Zr, Nd, Rb, K and depletion of Ba, Sr, Nb, P, Ti. The samples are enriched in LREE (light rare earth elements) and depleted in HREE (heavy rare earth elements) with pronounced Eu anomalies ( δ Eu=0.09∼0.72), suggesting a high degree of fractionation ((La/Sm)N=2.12∼6.60, (Gd/Yb) N=0.71∼2.48). The granites generally belong to the high-K calc-alkaline series and might have been produced by the magma that experienced a relatively high degree of crystallization differentiation. Most Neopaleozoic granites fall in the post-orogenic zone and the volcanic arc granite zone, respectively, in the R1-R2 structural setting discrimination diagram and the (Yb+Nb)-Rb versus (Yb+Ta)-Rb discrimination diagram, suggesting that the Xing'an Block and Songnen Block might have experienced collision and suturing during Late Paleozoic.


Guo K.-C.,Heilongjiang Institute of Geological Survey | Zhang W.-L.,Heilongjiang Institute of Geological Survey | Yang X.-P.,Heilongjiang Institute of Geological Survey | Wang L.,Heilongjiang Institute of Geological Survey | And 3 more authors.
Jilin Daxue Xuebao (Diqiu Kexue Ban)/Journal of Jilin University (Earth Science Edition) | Year: 2011

This study focuses on the tectonic origin of the Early Permian alkali granites in the area of Wudaogou, Heihe based on its petrological, geochemical and isotopic characteristics. These granites are aluminous to peraluminous in composition and high in Si and alkali, but low in Ca and Mg. They are enriched in Rb, Th and K, but depleted in Ba, Sr, P, Ti and Nb. Their REE distributions are of typical gull-type pattern. Overall, they have features of typical A-type granite and were considered to be formed in an extensional environment after collision of Ergun-Xing'an block with Songnen-Zhangguangcai block. The newly identified Wudaogou A-type granites in the area of Heihe are of great significance to the ongoing study on the Late Paleozoic tectonic evolution and regional metallogenesis.

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