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中国香港联合国教科文组织世界地质公园地质遗迹资源及综合利用价值评价

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现代地质 2024年第2期38卷 520-532页

作者：王璐琳田明中张建平武法东程捷张绪教中国地质大学(北京)自然文化研究院北京100083 中国地质大学(北京)地球科学与资源学院北京100083

地质遗迹综合利用价值是地质公园开展地质遗迹资源保护、开发利用等工作的重要科学依据,但如何进行客观和定量的评价尚未很好解决。对香港世界地质公园的地质遗迹资源进行详细野外调查,根据《国家地质公园规划编制技术要求》划分地质遗... 详细信息

地质遗迹综合利用价值是地质公园开展地质遗迹资源保护、开发利用等工作的重要科学依据,但如何进行客观和定量的评价尚未很好解决。对香港世界地质公园的地质遗迹资源进行详细野外调查,根据《国家地质公园规划编制技术要求》划分地质遗迹资源类型,运用层次分析法对香港世界地质公园综合利用价值进行了定量评价。结果显示,香港世界地质公园典型地质遗迹共分为5个大类、11个类和14个亚类,从自然属性、价值属性、保护管理与开发利用条件等方面选取4个综合评价因子、15个具体评价指标,构建地质遗迹资源价值评价指标体系,并确定评价的指标权重;根据制定的评分标准,邀请专家对地质遗迹综合价值进行打分,运用地质遗迹综合利用价值评价计算模型,计算得出香港世界地质公园地质遗迹综合利用价值评价的得分为90.27,为一级旅游资源。研究成果为深入开展香港世界地质公园地质遗迹管理保护和开发利用等工作提供科学依据,也为其它地质公园的地质遗迹资源综合利用评价提供借鉴案例。

关键词：地质公园地质遗迹资源价值评价层次分析法中国香港

Geochemistry and zircon U-Pb geochronology of the rhyolitic tuff on Port Island, Hong Kong： Implications for early Cretaceous tectonic setting

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Geoscience Frontiers 2017年第3期8卷 565-581页

作者： Longlong Zhao Lulin Wang Mingzhong Tian fadong wu School of Earth Science and Resources China University of Geosciences

Early Cretaceous rhyolitic tuffs, widely distributed on Port Island, provide insights into the volcanism and tectonic setting of Hong Kong. In this paper we present petrological, geochronological and geochemical data of the rhyolitic tuff to constrain the diagenesis age and petrogenesis of the rocks, tectonic setting and early Cretaceous volcanism of Hong Kong. The first geochronological data show that the zircons in the volcanic rocks have U-Pb age of 141.1-139.5 Ma, which reveals that the rhyolitic tuff on Port Island was formed in the early Cretaceous （K1）. Geochemically, these acid rocks, which are enriched in large ion lithophile elements （LILEs） and light rare earth elements （LREEs）, and depleted in high field strength elements （HFSEs）, belong to the high K calc-alkaline to shoshonite series with strongly-peraluminous characteristic. The geochemical analyses suggest that the volcanic rocks were derived from deep melting in the continental crust caused by basaltic magma underplating. Based on the geochemical analysis and previous studies, we concluded that the rhyolitic tufts on Port Island were formed in a back- arc extension setting in response to the subduction of the Paleo-Pacific Plate beneath the Eurasian Plate.

关键词： Geochemistry Geochronology Rhyolitic tuff Petrogenesis Tectonic setting Hong Kong

The Geological Significance of a Tuffite Interlayer in the Cretaceous Port Island Formation in Northeastern Hong Kong

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Acta Geologica Sinica(English Edition) 2018年第3期92卷 1041-1052页

作者： ZHAO Longlong WANG Lulin TIAN Mingzhong wu fadong Key laboratory of Digital Earth Science Institute of Remote Sensing and Digital EarthChinese Academy of Sciences School of Earth Science and Resources China University of Geosciences

The Port Island Formation(PIF), a typical Cretaceous red bed in Hong Kong, is dominated by non-fossiliferous, reddish clastic rocks, making it difficult to determine the sedimentary age of PIF precisely. Previous studies assigned the PIF to Late Cretaceous provisionally only on the basis of its stratigraphic sequence and lithology. This study identified a tuffite interlayer in the PIF and a zircon UPb age of 128.2±2.7 Ma by LA-ICP-MS method was obtained. It’s the first time to date the depositional age of the PIF with a reliable chronological constraint. With the support of stratigraphic evidence, we concluded that the geological age of PIF should be Early Cretaceous rather than Late Cretaceous. Based on the volcanic history of Hong Kong and Southeast China and the distribution of the PIF in Mirs Bay, it is believed that there was no volcanic activity in Hong Kong in ca. 128 Ma. The tuffite interlayer discovered in PIF was formed by the deposition of volcanic ash, which might originate from remote region outside Hong Kong, in an aquatic environment on Port Island. The identification of the tuffite interlayer, as the response to a volcanic event, has great significance not only to the studies of establishment and regional correlation of the strata system and the geological evolution in Hong Kong,but also to the study of volcanic activities in Southeast China.

关键词： tuffite LA-ICP-MS zircon U-Pb dating Port Island Formation Early Cretaceous volcanic activities Hong Kong China

Late Jurassic to Early Cretaceous volcanism of Hong Kong: Insights from the Ping Chau Formation

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Geoscience Frontiers 2019年第2期10卷 553-568页

作者： Lulin Wang Longlong Zhao Mingzhong Tian fadong wu Xujiao Zhang School of Earth Science and Resources China University of Geosciences (Beijing) Key Laboratory of Digital Earth Science Institute of Remote Sensing and Digital EarthChinese Academy of Sciences School of Earth Science and Resources China University of Geosciences Beijing

The vast expanse of Mesozoic igneous rocks in Hong Kong contain important geological records of late Mesozoic magmatic events and tectonic processes from the coastal region of Southeast China. Of these,the Ping Chau Formation in the northwestern New Territories is the youngest known stratum. We perform a detailed study of the volcanic rocks of the Ping Chau Formation utilizing zircon U-Pb dating,with major and trace elements geochemistry. LA-ICP-MS zircon U-Pb data reveal Early Cretaceous age from two volcanic rock samples, with zircon crystallization from magmas at 140.3 ± 0.8 Ma and 139.3 ± 0.9 Ma,respectively. These rocks have high contents of total alkalis(Na_2O + K_2O = 5.58-9.45 wt.%), high-field-strength elements and light rare earth elements, conspicuous negative Eu anomalies, and depletions in Nb, Ta, Ti, Sr, Ba and P. Using this data, in combination with previous studies on the late Mesozoic volcanic belt in Southeast China, we propose that the volcanic rocks of the Ping Chau Formation probably originated from deep melting of the crust in a back-arc extensional setting induced by the subduction of the paleo-Pacific Plate. This formation represents the final stages of Early Cretaceous volcanic activity in Hong Kong, as associated with large-scale lithospheric extension, thinning and magmatism. Our results provide new information that can be used in evaluating the significance of Early Cretaceous volcanism and tectonics in Southeast China.

关键词： Hong Kong Ping Chau Formation Zircon U-Pb dating Geochemistry Early Cretaceous Southeast China

Discovery and Significance of Quaternary Glacial Vestiges in the Hexigten Area of the Southern Da Hinggan Mountains, Inner Mongolia

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Acta Geologica Sinica(English Edition) 2005年第4期79卷 564-569页

作者： SUN Hongyan TIAN Mingzhong wu fadong ZHANG Jianping China University of Geosciences Beijing 100083

The question whether there have been Quaternary glaciations in the Da Hinggan area has puzzled glacial geologists for many years because no sufficient glacial evidence has been found in this area. The study of Quaternary glaciers in the Da Hinggan area is also a key issue of the glaciology in China because of the special location of this area. In the past two years, a large number of complete and typical glacial vestiges have been found in Hexigten in the southern Da Hinggan Mountains, such as fossil cirque groups, horns, knife-edge crests, terminal moraines, glacial stepped stones. These landforms are located at a watershed, which are thus impossible to be formed due to tectonic processes, water or weathering, but can only be formed by glaciation. The calculated flat indexes of the fossil cirques in the Hexigten are 1.7-4.5, 4-5 and 1.3-5, which are within the range of 1.7-5 that is the flat index of real cirques. The typical and complete moraines have also been found in this area. All these glacial vestiges prove that the Quaternary glaciers did exist in the Da Hinggan Mountains of eastern China. Thus, it is of important scientific significance for the research on Chinese, even the global climatic and environmental evolution since the Quaternary.

关键词： Da Hinggan Mountains Hexigten Quaternary glacial vestiges

Paleocurrent Analysis on the Basal Conglomerate of the Model Changzhougou Formation in Qian'an

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wuhan University Journal of Natural Sciences 2016年第2期21卷 178-184页

作者： XIAO Junwen wu fadong CHEN Yongjin School of Earth Sciences and Resources China University of Geosciences School of Energy Resources China University of Geosciences

The paleoflow direction of the basal conglomerate of the Changzhougou formation is obtained by the paleocurrent analysis of certain sedimentary structures,and the ancient sedimentary environment of the Qian’an Region is determined by observing the psephicity and gradation of gravel in *** results show that the paleoflow direction is from northwest to southwest,and the paleocurrent data manifest a single-peak style in a rose *** average paleoflow direction in the Qian’an region is 265°.The basal conglomerate is of littoral facies,and the sediments of conglomerates are mainly sourced from Shanhaiguan.

关键词： paleocurrent basal conglomerate Changzhougou formation paleo environment

Classification and Evaluation of Geoheritages Resources in the Guanzhaishan Mountain National Geopark

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Classification and Evaluation of Geoheritages Resources in t...

Highly efficient and active Co-N-C catalysts for oxygen reduction and Zn-air batteries

作者： Zhenjie JIA fadong wu School of Earth Sciences and Resources China University of Geosciences（Beijing）

With the Guanzhaishan Mountain National Geopark’s geoheritages resources as the research object,the paper analyzes the types of the geopark’s geoheritages resources and the qualitative and quantitative evaluation on the basis of the geopark area investigation and *** analysis shows that all kinds of resources in the geopark have important influence from science and science popularization value,social benefit value,environmental benefit value and tourism development *** quantitative analysis determines the grade of the major geoheritages resources in the *** results provide the scientific basis for the conservation of the geoheritages of Guanzhaishan Mountain National Geopark and the subsequent planning and development.

关键词： Geopark Geoheritages Types of resources Evaluation Guanzhaishan Mountain

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Frontiers in Energy 2024年第4期18卷 436-446页

作者： Cong LEI Rongzhong YANG Jianan ZHAO Wenbin TANG fadong MIAO Qinghong HUANG Yuping wu School of Energy Science and Engineering Nanjing Tech UniversityNanjing 211816China

In this study,the Lewis doping approach of polyaniline(PANI)was employed to fabricate cobait-nitrogen-carbon(Co-N-C)oxygen electrocatalysts for Zn-air batteries,aiming to enhance the active spots of *** resulting Co-N-C catalysts exhibited welldefined nanofiber networks,and the Brunauer-EmmettTeller(BET)analysis confirmed their substantial specific surface *** experiments demonstrated that the Co-N-C catalysts achieved the half-wave potential(***)of 0.85 V in alkaline medium,overcoming Pt/C and iron-nitrogen-carbon(Fe-N-C)counterparts in extended cycle testing with only a 25 mV change in a half-wave potential after 5000 ***,the highest power density measured in the zinc(Zn)-air battery reached 227 mW/cm^(2),a significant improvement over the performance of 101 mW/cm^(2) of the platinum on activated carbon(Pt/C)*** findings highlight the advantageous stability enhancement associated with the utilization of Co in the Co-N-C catalysts.

关键词： oxygen reduction reaction(ORR) oxygen evolution reaction(OER) non-noble metal catalysts Co-N-C catalysts Zn-air battery

Design of Geopark Study Travel-Taking Bayan Nur National Geopark as An Example

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Design of Geopark Study Travel-Taking Bayan Nur National Geo...