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Journal of Earth Science 2025年

作者： Yongheng Zhou Yaming Tang Bo Hong Fan Feng Longhui Wang Institute of geological Survey， China University of Geosciences (Wuhan) Institute of Earth Environment， Chinese Academy of Sciences Xi'an geological Survey Center China geological Survey Chinese Academy of geological Sciences

Malan loess is highly water-sensitive， with its shear strength， particularly cohesive strength， significantly decreasing under the influence of water. The Western Shanxi Loess Plateau （WSLP） is especially prone to loess landslides， which are closely linked to rainfall infiltration. Understanding the regional variation of Malan loess cohesion (cm) and its distribution in relation to the developmental intensity of landslides in this area can provide essential scientific evidence for effective landslide prevention. Loess landslides and Malan loess were selected as the objects of study for the current research. The regional variation and distribution pattern of the cmwere revealed through undisturbed loess direct shear tests and Inverse Distance Weighting （IDW） interpolation. The relationship between the developmental intensity of landslide and the regional variation of the cmwas explored using the Cumulative Sum Variable Dimension Fractal （CSVDF）， Frequency Ratio （FR） model， and Certainty Factor （CF） model. The following conclusions were drawn: Results from the direct shear tests and IDW method indicate that the cmtends to decrease from south to north and exhibits a positively skewed spatial distribution pattern. The CSVDF results indicates a similarity between the regional variation of the cmand the development intensity of loess landslides. The FR and CF results reveal that loess landslides are more likely to occur when the cmis between 0 and 16.14 kPa.

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Lithofacies Features and Mechanism of Formation of “Zihe-type” Time-and Strata-bound Iron Ore Deposits in Central shandong Province

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Acta Geochimica 1984年第4期3卷 384-395页

作者：冯志文王思源黄永珂余恒翁胡呼炎 geological team no.1 shandong geological bureau Wuhan College of Geology

The Lower Palaeozoic system is a series of iron-bearing rocks consisting mainly of shallowsea-facies *** the basis of microfacies analysis of the carbonate rocks,the Lower Pa-laeozoic sedimentary sea basin is divided into two broad sedimentary-tectonic regions of foursedimentary facies and eight *** original iron-rich carbonates were deposited in salt-lakes,lagoons,*** the restricted *** the long geological history,the original ironformations were reconstructed to various extents by late tectonic *** obser-vations and studies on the equilibrium mechanism of oxygen/sulfur isotopic fractionation and thecomposition and temperature of fluid inclusions in the minerals indicate that thermal brines play-ed an important role in reworking of the original iron-rich carbonate rocks,which led to the for-mation of sedimentary-reworked strata-bound ore deposit.

关键词： Lithofacies Features and Mechanism of Formation of Zihe-type Time-and Strata-bound Iron Ore Deposits in Central shandong Province

Chemostratigraphy and lithological characters of Neoproterozoic cap carbonates from the Kuruktag Mountain, Xinjiang, western China

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Chinese Journal Of Geochemistry 2007年第2期26卷 132-142页

作者：杨瑞东张传林王伯勋罗新荣 Guizhou University Nanjing Institute of Geology and Mineral Resources No.4 geological team of Liaoning geological bureau No.3 geological team of Xinjiang geological bureau

The Neoproterozoic Era includes some of the most largest ice ages in the geological history. The exact number of glaciations is unknown, though there were at least two events of global glaciation. Neoproterozoic glacial deposits in the Kuruktag Mountain, Xinjiang, western China have proven that there had occurred three discrete Neoproterozoic glaciations. Diamictite units occurred in the Bayisi, Tereeken, and Hankalchough formations, carbonate units were recognized among the diamictites and immediately overlied the Bayisi, Tereeken and Hankalchough diamictites. Carbonates at the top of the Bayisi Formation are characterized by the dolo-sility stones with negative δ13C values ranging from -4.10‰ to -8.17‰ (PDB), comparable to the Sturtian cap carbonates that overlie the Sturtian glacial deposits from other Neoproterozoic sequences. Carbonates overlying the Tereeken Formation are characterized by the pinkish cap dolostones (ca. 10 m thick) with negative δ13C values ranging from -2.58‰ to -4.77‰ (PDB), comparable to the Marinoan cap carbonates. The cap is also characterized by tepee-like structures, barite precipitates and pseudomorphous aragonite crystal fan limestones. Carbonates at the top of the Hankalchough Formation are characterized by subaerial exposure crust (vadose pisolite structure, calcareous crust structure) dolostones with negative δ13C values ranging from -4.56‰ to -11.45‰ (PDB) and the calcareous crust dolostones, implying that the Hankalchough cap carbonates differ from either the Sturtian or Marinoan cap carbonates in sedimentary environment and carbon isotopic composition. In addition, it is suggested the Hankalchough glaciation belongs to a terrestrial glaciation and it is the third largest glaciation during the Neoproterozoic period on the Tarim platform.

关键词：新疆库鲁克塔格山新元古代帽成碳酸盐岩化学地层学岩石学特性

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Analysis of occurrence characteristics of geothermal resources and its relation to control structures in Zibo City, China

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Journal of Groundwater Science and Engineering 2019年第1期7卷 70-76页

作者： TAN Xiao-bo WEI Shan-ming BO Ben-yu JIANG Dian-qing No.801 Hydrogeological Engineering geological team of shandong bureau of geological and Mineral Exploration and Development Groundwater Resources and Environment Innovation team of shandong geological and Mineral bureau

According to the geothermal geological conditions, the geothermal resources in Zibo can be divided into sedimentary basin type and tectonic basin type. The main thermal reservoirs of sedimentary basin type are the Neogene Guantao Formation and the Paleogene Dongying *** thermal reservoirs of tectonic basin type are mainly the Ordovician Majiagou Group. The characteristics of reservoir, cap, pass and source of thermal resource types in different areas are elaborated. Based on the analysis of the wellforming conditions of the existing geothermal wells in the area, combined with the geothermal anomaly areas and hydrogeochemistry, it was discovered that the fault structures in the area, especially the deep faults such as Yuwangshan fault, Wangmushan fault, Zhangdian fault and Chaomizhuang graben, play an important role in controlling the occurrence and distribution of tectonic basin-type geothermal resources in Zibo City.

关键词： Zibo City Sedimentary basin types Tectonic basin types Structures

Discussion on establishing monitoring networks for temperature fields of shallow thermal energy in shandong, China

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Journal of Groundwater Science and Engineering 2019年第1期7卷 86-93页

作者： ZHOU Bo WEI Shan-ming WANG Tao NIE Yu-peng WANG Chuan-qi No.801 Hydrogeological Engineering geological team of shandong bureau of geological and Mineral Exploration and Development

In the recent decade, the construction projects related to shallow geothermal energy engineering have undergone rapid development in shandong Province. The predominant type of these developments and applications was heat exchange through buried tubes and the main targets were residential and office buildings. However, an overwhelming majority of the completed geothermal heat pump projects lacked monitoring devices so that they were unable to comprehensively reflect the background values for the geothermal fields within the province and few researches were conducted on their influence on the geological environment. In this paper, locations for monitoring shallow geothermal energy and their validity of the monitoring point deployment were studied in view of the development and application status as well as geological background conditions of various projects located in multiple cities providing data support for analyzing the fluctuation trend and influence of large-scale shallow geothermal energy applications on the shallow geothermal and the feasibility and parameter designs of newly built systems in shandong Province in the future.

关键词： Shallow geothermal energy Geothermal field Monitoring network

Ore-forming Solution and Genesis of a Rock Crystal Deposit in South Hunan,Indicated by Fluid Inclusion Studies

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Acta Geochimica 1982年第4期1卷 387-408页

作者：张树林 geological team No.654 Hunan geological bureau

Si,Al,Ca,Mg,Fe,Na,K,CO;,F,*** detected from the fluid inclusion *** these constituents,Si,Na,and CO;are predominant,amounting to more than *** indicates that the ore-forming solution must be alkalino with Si,Na,and CO;as its dominant *** temperatures for the solution range from 80 to360℃.Although rock quartz can crystallize at the above temperature interval,perfect crystalsof economic importance are largely formed below 260℃.The temperature of formation in-creases toward the granite intrusives at a rate of about one degree per *** is esti-mated from the lithostatic load that the salinity of rock quartz is 17—23（NaCl wt%）,while that of vein quartz is relatively high as compared with the *** is a ten-dency for the salinity of the ore-forming solution to increase with depth.

关键词： Ore-forming Solution and Genesis of a Rock Crystal Deposit in South Hunan,Indicated by Fluid Inclusion Studies

General geological Characteristics of a Certain Mixed-type Asbestos Deposit,Shaanxi Province

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Acta Geochimica 1984年第4期3卷 346-354页

作者：汪仁勇 geological team no.13 Shaanxi geological bureau

As is evidenced from the mode of occurrence,mineralogy,and features of asbestos mineralsand the types of veins,as well as the fibrous characters,it is recognized that the asbestos depositstudied in this paper is different in origin from either the serpentine type associated with ultra-basic rocks or that related to dolomitic limestone or dolomite,and can be assigned to a grada-tion between the two types

关键词： General geological Characteristics of a Certain Mixed-type Asbestos Deposit,Shaanxi Province

Research on basic characteristics of ~2H, ^(18)O and ^(14)C in geothermal fluid in Guangdong Province, China

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Journal of Groundwater Science and Engineering 2019年第1期7卷 42-52页

作者： ZENG Tu-rong No.4 geological team of Guangdong geological bureau

In general, previous geothermal geochemical studies in Guangdong Province mainly involves single method to cover limited aspects and areas. In that way, various methods available cannot actually provide more convincing results of geothermal fluid's circulation system and evolution process from different dimensions, especially in terms of isotope. As a result, more comprehensive researches remain to be done on geochemistry of geothermal fluid, in particular, the space-time law of isotope's evolution pattern as well as recharge cycle. Based on data of environmental isotopes(~2H and ^(18)O) and the isotope of radiometric dating(^(14)C), geothermal geology, characteristics of groundwater flow field and types of goethermal reservior in Guangdong Province are taken into account in this paper, so as to analyze numerical rule and spatial distribution features of isotopes. Thus, corresponding main causes, mechanism and hydrogeological significance can be revealed to further study the potential of geothermal fluid to renew and recharge in the long run, which is conducive to enrich geothermal theories and solve existing hydrogeological problems.

关键词： Geothermal fluid Isotope Characteristics Types of geothermal reservior

Geochronology, Geochemistry, and Hf Isotopic Compositions of Monzogranites and Mafic-Ultramafic Complexes in the Maxingdawannan Area, Eastern Kunlun Orogen, Western China: Implications for Magma Sources, Geodynamic Setting, and Petrogenesis

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Journal of Earth Science 2019年第2期30卷 335-347页

作者： Jiaming Yan Guosheng Sun Fengyue Sun Liang Li Haoran Li Zhenhua Gao Lei Hua Zhengping Yan College of Earth Sciences Jilin University The Eighth Institute of shandong geological Exploration Qinghai Provincial bureau of Ferrous Metal and geological Exploration

This paper presents zircon U-Pb-Hf isotopic compositions and whole-rock geochemical data for monzogranites and mafic-ultramafic complexes of the Maxingdawannan area in the western end of the east Kunlun orogenic belt, western China. The data are used to determine the ages, petrogenesis, magma sources, and geodynamic setting of the studied rocks. U-Pb zircon dating indicates that monzogranites and gabbros of the complexes were emplaced at 399 and 397 Ma, respectively. The monzogranites are shoshonitic, with high SiO2, Al2 O3 and total-alkali contents, and low TFeO, MgO, TiO2 and P2 O5 contents. The mafic-ultramafic complexes are characterized by low Si O2 contents. The monzogranites display enrichment in light rare-earth elements(LREE) and large-ion lithophile elements(LILE), depletion in heavy REEs(HREE) and high-field-strength elements(HFSE), and negative Eu anomalies(Eu/Eu*=0.36–0.48). The mafic-ultramafic complexes are also enriched in LREEs and LILEs, and depleted in HREEs and HFSEs, with weak Eu anomalies(Eu/Eu*=0.84–1.16). Zircon εHf(t) values for the monzogranites and mafic-ultramafic complexes range from-6.68 to 1.11 and-1.81 to 6.29, with zircon model ages of 1 812–1 319 Ma(TDM2) and 1 087–769 Ma(TDM1), respectively. Hf isotopic data indicate that primary magmas of the monzogranites are originated from partial melting of ancient lower crust during the Paleo-Mesoproterozoic, with a juvenile-crust component. Primitive magmas of the mafic-ultramafic complexes are likely originated from a depleted-mantle source modified by slab-derived fluids and contaminated by crustal components. Geochemical data and the geological setting indicate that Devonian intrusions in the Maxingdawannan area are related to northward subduction of the ProtoTethys oceanic lithosphere.

关键词： geochronology geochemistry Hf isotopes Maxingdawannan Proto-Tethys Ocean

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The source of replenishment of geothermal water around Xi'an

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Science China(Technological Sciences) 2001年第S1期44卷 165-167页

作者：陶书华 The Hydrogeological and Engineering geological team No. 1 of Shaanxi bureau of Geology and Mineral Resources Xi'an China

The meteoric origin of the geothermal water in Xi’an is evidenced by its H and O isotope composition. Based on the temperature dependence of isotopic composition, the temperature of meteoric water that replenishes the geothermal aquifers in Xi’an and its neighboring regions is calculated to be -13.28℃. The age of the geothermal water based on 14C dating method is 10-30 kaBP, belonging to a secondary glacial period in Late Quaternary. The source of replenishment is considered to have mainly derived from glacial snow melt water from elevations higher than 2,000m (ASL) in Qinling Mountains.

关键词： underground thermal water meteoric water hydrogen and oxygen isotopes.

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