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河北承德地区土壤硒元素地球化学特征、地质成因及其生态环境评价

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中国地质 2024年第4期51卷 1290-1303页

作者：魏浩卫晓锋王京彬朱苏加杨帆梁钊田晓霞李炜贾文茹于开宁河北地质大学河北省高校生态环境地质应用技术研发中心河北石家庄050031 河北地质大学河北省战略性关键矿产资源重点实验室河北石家庄050031 中色紫金地质勘查(北京)有限责任公司北京100012 河北省科学院地理科学研究所河北石家庄050011 中国地质科学院地球物理地球化学勘查研究所河北廊坊065000 北京市农林科学院草业花卉与景观生态研究所北京100097

【研究目的】查明承德地区土壤硒的分布特征及地质成因,为当地土壤硒的勘查及有效利用提供科学依据。【研究方法】通过地质调查查明该区成土母质类型,利用X-射线荧光光谱法、电感耦合等离子体发射光谱法、凯氏定氮法等获取了553个土壤... 详细信息

【研究目的】查明承德地区土壤硒的分布特征及地质成因,为当地土壤硒的勘查及有效利用提供科学依据。【研究方法】通过地质调查查明该区成土母质类型,利用X-射线荧光光谱法、电感耦合等离子体发射光谱法、凯氏定氮法等获取了553个土壤样品及66件岩矿石样品中硒及多个元素的含量,并利用SPSS软件分析数据,结合地质作用分析地质成因。【研究结果】研究区成土母质大致分为9类,表层土壤中硒含量最小值为0.016mg/kg,最大值为0.743 mg/kg,平均值为0.17 mg/kg,土壤平均硒含量仅为全国土壤平均硒含量的1/2,处于缺乏等级。铁矿石、金矿石、铅锌矿石中硒含量均值分别为0.860 mg/kg、1.233 mg/kg、3.365 mg/kg,明显高于各类矿石的尾矿及围岩。【结论】承德地区土壤硒整体含量很低,主要决定于成土母质,分布特征受控于地质建造。富硒土壤区域集中在隆化县南部(A区)、承德市南部(B区)(双滦区、双桥区)、宽城县东部(C区)。C区属于“岩石风化型”,与含硒量高的原生碳酸盐岩+碳质泥岩地层组合有关;B区属于“成矿伴生型”,与铅锌矿成矿过程中硒与金属硫化物的伴生关系及硒与硫的替代关系有关;A区属于“河道沉积型”,与河道沉积过程中河湖冲动力驱动、有机质的吸附作用有关。承德南部富硒区域具有发展林果经济的天然优势,围场县处于低硒环境,是引发克山病等地方病流行的因素之一。

关键词：土壤硒分布特征相关性分析地质成因农业地质调查工程承德市河北省

geological Controls on High Production of Tight Sandstone Gas in linxing Block, Eastern Ordos Basin, China

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Acta Geologica Sinica(English Edition) 2020年第2期94卷 430-443页

作者： QI Yu JU Yiwen MENG Shangzhi YU Kun li Wuyang jia Tianrang WU jianguang CHEN Wangang LUO long Key Laboratory of Computational Geodynamics College of Earth and Planetary SciencesUniversity of Chinese Academy of SciencesBeijing 100049China Department of Earth sciences Durham University.Durham.Dill 3LEUK China United Coalbed Methane Co Ltd Beijing 100011China State Key Laboratory Cultivation Base for Gas Geology and Gas Control Henan Polytechnic UniversityJiaozuoHenan 454000China College of Geosciences China University of PetroleumBeijing 102249China

Tight sandstone gas in the linxing Block, eastern Ordos Basin, has been successfully exploited. The high performance is mainly a result of the special geological conditions. The key geological controls for high production have been discussed on the basis of seismic data, field observation, sample features, mercury porosimetry, mechanical properties, and basin modeling. Firstly, the coal measures have good gas generation potential, not only because of the existence of coalbeds and organic-rich shales, but also because coal laminae and microbial mats in the shales significantly increase their total organic carbon(TOC) contents. Secondly, except for the uplifted zone of the Zijinshan complex and the eastern fault zone, rare large faults develop in the Carboniferous–Permian sequence, ensuing the sealing capacity of cap rock. Small fractures generally concentrated in the sandstones rather than the mudstones. Thirdly, gas accumulation in the linxing Block was controlled by the tectonic, burial and thermal histories. Gas accumulation in the linxing Block started in the Late Triassic, followed by three short pauses of thermal maturation caused by relatively small uplifts;the maximum hydrocarbon generation period is the Early Cetaceous as a combined result of regional and magmatic thermal metamorphisms. Field profiles show abundant fractures in sandstone beds but rare fractures in mudstone beds. Mechanical properties, determined by lithostratigraphy, confine the fractures in the sandstones, increasing the permeability of sandstone reservoirs and retaining the sealing capacity of the mudstone cap rocks. The modern ground stress conditions favor the opening of predominant natural fractures in the NNW-SSE and N-S directions. These conclusions are useful for exploring the potential tight sandstone gas field.

关键词： tight sandstone gas structure fracture basin evolution Ordos Basin

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苏鲁造山带地壳上地幔结构层析成像研究

地球科学 2020年第7期45卷 2485-2494页

作者：郑洪伟李廷栋苏刚中国地质科学院地质研究所北京100037 中国地质科学院北京100037 中国地震灾害防御中心北京100029

扬子与华北板块在三叠纪的俯冲碰撞形成了著名的苏鲁超高压造山带,其板块碰撞接触关系一直是热点问题.利用国家台网中心64个省台记录的1079个近震事件的10922个P波到时和251个远震事件的11931个P波到时数据,采用远近震联合反演的层析成... 详细信息

扬子与华北板块在三叠纪的俯冲碰撞形成了著名的苏鲁超高压造山带,其板块碰撞接触关系一直是热点问题.利用国家台网中心64个省台记录的1079个近震事件的10922个P波到时和251个远震事件的11931个P波到时数据,采用远近震联合反演的层析成像方法对苏鲁地区进行了地壳上地幔速度结构反演.结果显示,研究区内两个低速异常区分别对应山东半岛西部的华北板块地幔上隆区和壳幔相互作用强烈的长江中下游成矿带地区.在地幔300 km深度之下出现的高速异常体可能代表了早中生代扬子与华北板块碰撞之前俯冲拆沉的古特提斯洋板块.传统观点的扬子板块岩石圈向北俯冲不明显,华北板块表现为向东南俯冲的高速特征.华北板块俯冲以苏鲁造山带中部的北纬35°为界,分为南北两种俯冲样式.北部俯冲不明显,华北板块停滞在郯庐断裂带以西;南部则表现华北板块向东南陡倾俯冲到苏鲁造山带之下.

关键词：苏鲁造山带壳幔速度结构 P波层析成像华北板块东南俯冲地球物理

Description and Phylogenetic Position of Dinosaur Eggshells from the Luanchuan Area of Western Henan Province,China

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Acta Geologica Sinica(English Edition) 2011年第1期85卷 66-74页

作者： Kohei TANAKA LU Junchang Yoshitsugu KOBAYASHI Darla K. ZELENITSKY XU li jia Songhai QIN Shuang TANG Min＇ an Department of Geoscience University of Calgary Calgary T2N 1N4 Canada Institute of Geology Chinese Academy of Geological Sciences Beijing 10037 China Hokkaido University Museum Hokkaido University Sapporo 060-0810 Japan Henan geological Museum Zhengzhou 450016 China North China University of Water Conservancy and Electric Power Zhengzhou 450011 China

Here, we examine 145 dinosaur eggshells from a new fossil locality in the Qiupa Formation （Upper Cretaceous） of the Luanchuan area in western Henan Province, China. The eggshells display elongatoolithid macro- and microstructures, including ridges and nodes on the outer surface, two ultrastructurai layers, and an undulatory boundary between the mammillary and continuous layers. A phylogenic analysis shows that the Luanchuan eggshells belong to the ooclade Elongatoolithidae. Within Elongatoolithidae, the thickness ratio of the mammillary layer to the entire eggshell, and the porosity of the Luanchuan eggshells are comparable to the oogenera Macroolithus and Elongatoolithus. There is no direct evidence for the taxonomic identity of the Luanchuan eggshells; however, they were likely laid by oviraptorids based on their phylogenetic position and their similarities with known oviraptorid eggs.

关键词： dinosaur eggshells Qiupa Formation Late Cretaceous Luanchuan Henan Province,China

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中国区域地质研究的十大进展

地质学报 2022年第5期96卷 1544-1581页

作者：李廷栋刘勇丁孝忠庞健峰中国地质科学院地质研究所北京100037 河北地质大学河北石家庄050031

今年,欣逢中国地质学会成立100周年,特以此文恭贺中国地质学会百年来所取得的光辉成就和对中国地质事业发展做出的卓越贡献。2008年,中国地质调查局下达了重编中国区域地质志的科研项目。经过十多年志书的编写获得了诸多创新性的区域地... 详细信息

今年,欣逢中国地质学会成立100周年,特以此文恭贺中国地质学会百年来所取得的光辉成就和对中国地质事业发展做出的卓越贡献。2008年,中国地质调查局下达了重编中国区域地质志的科研项目。经过十多年志书的编写获得了诸多创新性的区域地质研究成果,主要成果可以概括为十个方面:(1)大幅度地提高了全国地质研究程度和地质科技水平;(2)提出发展洋板块地质的学术思想,初步建立了洋板块地质构架;(3)地层研究取得重要新进展,完成全国显生宙构造-地层区划和地层格架研究;(4)开启了蛇绿岩研究新思路,拓宽了蛇绿岩研究范围;(5)前寒武纪地质研究获颠覆性科学成果,阐明了太古宙地壳演化规律,提出中—新元古界新的划分方案;(6)取得多项岩浆岩创新性科研成果,建立了中国及邻区侵入岩时空演化格架;(7)中国地质构造研究获突破性进展;(8)地球深部探测研究步入国际先进行列,建立了全方位“深地”探测研究科技支撑体系;(9)为资源环境评价开辟了新方向,海洋地质与第四纪地质调查研究取得长足进展;(10)探索了地质图件研编新模式,总结了地质制图的基本经验。

关键词：中国地学会成立100周年新一代中国区域地质志中国岩浆岩中国地层区划与地层格架中国前寒武纪研究洋板块地质地球物理深部地质海洋地质第四纪地质地质编图

Soil water movement and deep drainage through thick vadose zones on the northern slope of the Tianshan Mountain: Croplands *** lands

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China Geology 2020年第1期3卷 113-123页

作者： Fang-qiang Sun li-he Yin Wu-hui jia Jun Zhang Xiao-yong Wang li-feng Zhu Xin-xin Zhang Xiao-ping Tang jia-qiu Dong Xi’an Center of geological Survey China Geological SurveyMinistry of Natural ResourcesXi’an 710054China School of Water Resources and Environment China University of GeosciencesBeijing 100083China chinese academy of geological sciences China Geological SurveyMinistry of Natural ResourcesBeijing 100037China

Regional aridity is increasing under global climate change,and therefore the sustainable use of water resources has drawn attention from scientists and the ***-use changes can have a significant impact on groundwater recharge in arid regions,and quantitative assessment of the impact is key to sustainable groundwater resources *** this study,the changes of groundwater recharge after the conversion of natural lands to croplands were investigated and compared in inland and arid region,i.e.,the northern slope of the Tianshan *** isotopes suggest that soil water in topsoil(<2 m)has experienced stronger evaporation under natural lands than croplands,and then moves downward as a piston *** was estimated by the tracer-based mass balance method,i.e.,chloride and *** rates under natural conditions estimated by the chloride mass balance(CMB)method were estimated to be 0.07 mm/a in deserts and 0.4 mm/a in *** contrast,the estimated groundwater recharge ranged from 61.2 mm/a to 44.8 mm/a in croplands,indicating that groundwater recharge would increase significantly after land changes from natural lands to irrigated croplands in arid *** estimated by the sulfate mass balance method is consistent with that from the CMB method,indicating that sulfate is also a good tracer capable of estimating groundwater recharge.

关键词： Land-use Soil water Groundwater recharge Deep drainage Unsaturated zone Arid regions Cropland Natural land Groundwater survey engineering Tianshan Mountain China

1960-2020年黄河流域农业热量资源时空演变特征

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山西农业大学学报（自然科学版） 2024年第3期44卷 119-130页

作者：张志高张秀丽贾梦薇陈河阳孙梓欣郝海姣李卓娅蔡茂堂安阳师范学院资源环境与旅游学院河南安阳455000 河南大学黄河文明与可持续发展研究中心河南开封475001 河南大学地理与环境学院河南开封475004 中国地质科学院地质力学研究所北京100081

[目的]气候变暖将改变农业热量资源的时空分布,对黄河流域农业热量指标进行分析,可为区域合理利用农业气候资源提供依据。[方法]基于1960-2020年黄河流域89个气象站点逐日气象资料,运用线性趋势估计和Mann-Kendall突变检验等方法分析了... 详细信息

[目的]气候变暖将改变农业热量资源的时空分布,对黄河流域农业热量指标进行分析,可为区域合理利用农业气候资源提供依据。[方法]基于1960-2020年黄河流域89个气象站点逐日气象资料,运用线性趋势估计和Mann-Kendall突变检验等方法分析了黄河流域年平均气温,≥0℃和≥10℃的初终日、持续日数和有效积温的时空变化特征及其影响因素。[结果]近61 a黄河流域平均气温、≥0℃和≥10℃有效积温分别以0.29℃·(10 a)^(-1)、70.23℃·d·(10 a)^(-1)和34.50℃·d·(10 a)^(-1)的倾向率呈上升趋势,≥0℃和≥10℃持续日数呈增加趋势,倾向率分别为3.33 d·(10 a)^(-1)和2.78 d·(10 a)^(-1)。≥0℃和≥10℃初日呈提前趋势,倾向率分别为—2.16 d·(10 a)^(-1)和—2.14 d·(10 a)^(-1),≥0℃和≥10℃终日呈延迟趋势,倾向率分别为1.16 d·(10 a)^(-1)和0.63 d·(10 a)^(-1),≥0℃和≥10℃初日提前的幅度大于终日推迟的幅度,≥0℃初终日和持续日数变化幅度大于≥10℃相应指标变化幅度。近61 a黄河流域年平均气温、≥0℃和≥10℃有效积温分别于1996、2003和1997年发生突变。黄河流域上、中、下游地区各热量指标变化趋势与流域整体变化一致,上游地区变化幅度相对较大。从空间分布来看,由上游、中游到下游地区年平均气温逐渐增加,≥0℃和≥10℃有效积温逐渐增加,初日逐渐提前,终日逐渐推迟,持续日数逐渐延长。[结论]黄河流域农业热量资源呈增加趋势,热量指标主要受海拔高度和年平均气温影响。西太平洋副高强度指数、太平洋副高强度指数和东大西洋遥相关型指数是影响近61 a黄河流域农业热量指标变化的主要大气环流因子。

关键词：气温有效积温热量资源初终日数黄河流域

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渭河-三门峡盆地三门组沉积充填特征、物源区及其构造意义

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地球科学 2020年第7期45卷 2673-2683页

作者：刘瑾陈兴强王平李廷栋西安工业大学建筑工程学院陕西西安710021 中国地质科学院地质研究所北京100037 中铁第一勘察设计院集团有限公司陕西西安710043 南京师范大学地理科学学院江苏南京210023

渭河盆地和三门峡盆地内发育的河湖相三门组沉积,记录了上新世-更新世的盆地沉积历史,对认识区域古环境及盆地演化特征具有重要意义.通过两个盆地三门组地层的沉积相分析和物源重建,发现2.8~2.6 Ma盆地环境发生了明显变化,2.8~2.6 Ma渭... 详细信息

渭河盆地和三门峡盆地内发育的河湖相三门组沉积,记录了上新世-更新世的盆地沉积历史,对认识区域古环境及盆地演化特征具有重要意义.通过两个盆地三门组地层的沉积相分析和物源重建,发现2.8~2.6 Ma盆地环境发生了明显变化,2.8~2.6 Ma渭河盆地由深湖转为浅湖沉积,水位下降,而三门峡盆地由河流相转为滨浅湖,水位上升.结合前人古地貌重建和区域应力反演结果,认为上新世渭河盆地和三门峡盆地相互独立,早更新世两个盆地才连通,湖水由渭河盆地注入三门峡盆地,形成统一的三门古湖.对比区域构造事件和物源分析结果,认为青藏高原的快速隆升导致秦岭的抬升,可能是盆地及其水系演化的触发动力.

关键词：渭河盆地三门峡盆地三门组新构造构造地质

Melt extraction and mineralization: A case study from the Shuangjianzishan supergiant Ag-Pb-Zn deposit(208 Mt), Inner Mongolia, NE China

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China Geology 2023年第4期6卷 623-645,I0001-I0003页

作者： Meng Dai Guang-sheng Yan Yong-sheng li Wen-bin jia Fan-yu Qi Xing Ju China Aero Geophysical and Remote Sensing Center for Natural Resources China Geology SurveyMinistry of Natural ResourcesBeijing 100083China chinese academy of geological sciences China Geology SurveyMinistry of Natural ResourcesBeijing 100037China Development and Research Center China Geology SurveyMinistry of Natural ResourcesBeijing 100037China

The supergiant Shuangjianzishan(SJZ) Ag-Pb-Zn deposit is in the southern segment of the Great Hinggan Range(SGHR), northeast China. Previous studies suggest the ore-forming material and fluid originated from the magmatic system, and the mineralization age was consistent with the diagenetic age. However,the relationship between granitic magmatism and mineralization is still unclear in the SJZ. In this study, CH-O-He-Ar and in-situ S-Pb isotope analyses were conducted to determine the sources of ore-forming fluids and metals, which were combined with geochemistry data of SJZ granitoids from previous studies to constrain the relationship between the magmatism and the mineralization. The C-H-O-He-Ar-S-Pb isotopic compositions suggested the SJZ ore-forming material and fluids were derived from a magmatic source, which has mixed a small amount of mantle-derived materials. In addition, the disseminated sulfide from the syenogranite has comparable S-Pb isotopic composition with the sulfide minerals from ore veins,suggesting that the generation of the SJZ ore-forming fluids has a close relationship with the syenogranite magmatism. Combining with the geochemical characters of the syenogranite, the authors proposed that the mantle-derived fingerprint of the SJZ ore-forming fluid might be caused by the parent magma of the syenogranite, which was derived from partial melting of the juvenile lower crust, and underwent the residual melts segregated from a crystal mush in the shallow magma reservoir. The extraction of the syenogranite parent magma further concentrated the fertilized fluids, which was crucial to mineralization of the SJZ Ag-Pb-Zn deposit.

关键词： Ag-Pb-Zn deposit D-O-C-He-Ar isotope In-situ S and Pb isotope analysis Melt extraction Ore-forming fluid Syenogranite Metallogenic belt Mineral exploration engineering Southern Great Hinggan Range