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Acta Geologica Sinica(English Edition) 2012年第2期86卷 339-349页

作者： GAO Linzhi DING Xiaozhong ZHANG Chuanheng CHENJun LIU Yaorong ZHANG Hang LIU Xanxue PANG Weihua Institute of Geology Chinese Academy of Geological SciencesBeijing 100037China Hunan Institute of geological Survey Changsha410002HunanChina China University of Sciences Beijing 100083China Chengdu Institute of Mineral and Resource Chengdu 610081SichanChina

In a re-study of regional geology by the China geological Survey （CGS）, the key problem is in the stratigraphical division and correlation. According to the new isotopic dating of the Mesoand Neoproterozoic in China, there have been great changes in the strata correlation and tectonic explanation. The authors obtained four zircon sensitive high resolution ion micro-probe （SHRIMP） U- Pb datings from the bentonite of the Lengjiaxi Group （822±10 Ma, 823±12 Ma and 834±11 Ma） and Banxi Group （802.6±7.6 Ma） in north Hunan Province, which is considered to be the middle part of the Jiangnan Orogenic Belt. On the basis of the zircon dating mentioned above, the end of the Wuling orogen is first limited in the period from 822 Ma to 802 Ma in one continued outcrop （Lucheng section） in Linxiang city, Hunan Province. Combining a series of new zircon U-Pb datings in the Yangtze and Cathaysia blocks, several Neoproterozoic volcanic events and distribution of the metamorphic rocks in the Jiangnan Orogenic Belt have been distinguished. In the context of the global geodynamics, it is useful to set up a practical and high precision chronological framework and basic and unified late Precambrian section in South China.

关键词： chronostratigraphic tectonic events orogenic belt Meso-and Neoproterozoic South China continent

Active forest management accelerates carbon storage in plantation forests in Lishui,southern China

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Forest Ecosystems 2022年第1期9卷 33-46页

作者： Jiaojiao Diao Jinxun Liu Zhiliang Zhu Xinyuan Wei Mingshi Li College of Forestry Nanjing Forestry UniversityNanjing 210037China Co-Innovation Center for Sustainable Forestry in Southern China Nanjing Forestry UniversityNanjing 210037China U.S.geological Survey Western Geographic Science Center Moffett FieldCA 94035USA U.S.geological Survey RestonVA 20192USA Environmental Sciences division Oak Ridge National LaboratoryOak RidgeTN 37830USA

Background:China has committed to achieving peak CO_(2)emissions before 2030 and carbon neutrality before 2060;therefore,accelerated efforts are needed to better understand carbon accounting in industry and energy fields as well as terrestrial *** carbon sink capacity of plantation forests contributes to the mitigation of climate *** forests throughout the world are intensively managed,and there is an urgent need to evaluate the effects of such management on long-term carbon ***:We assessed the carbon cycling patterns of ecosystems characterized by three typical plantation species(Chinese fir(Cunninghamia lanceolata(Lamb.)Hook.),oak(Cyclobalanopsis glauca(Thunb.)Oerst.),and pine(Pinus massoniana Lamb.))in Lishui,southern China,by using an integrated biosphere simulator(IBIS)tuned with localized ***,we used the state-and-transition simulation model(STSM)to study the effects of active forest management(AFM)on carbon storage by combining forest disturbance history and carbon cycle ***:1)The carbon stock of the oak plantation was lower at an early age(50 years)than that of the Chinese fir and pine plantations.2)The carbon densities of the pine and Chinese fir plantations peaked at 70 years(223.36 Mg⋅ha^(‒1))and 64 years(232.04 Mg⋅ha^(‒1)),respectively,while the carbon density in the oak plantation continued increasing(>100 years).3)From 1989 to 2019,the total carbon pools of the three plantation ecosystems followed an upward trend(an annual increase of 0.16–0.22 Tg C),with the largest proportional increase in the aboveground biomass carbon pool.4)AFM increased the recovery of carbon storage after 1996 and 2009 in the pine and Chinese fir plantations,respectively,but did not result in higher growth in the oak plantation.5)The proposed harvest planning is reasonable and conducive to maximizing the carbon sequestration capacity of the ***:This study provide

关键词： Active forest management Carbon storage IBIS Plantations STSM

The Early Precambrian Rocks,Their Ages,division and Correlation of the Taihang-Wutai Region, the Yanshan Region and the Eastern Sector of the Yinshan Mountains

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Acta Geologica Sinica(English Edition) 1988年第3期1卷 249-266页

作者： Wang Qichao Hebei Regional geological Surveying Party, Langfang, Hebei Hebei Regional geological Surveying Party Langfang Hebei

According to differences of the protolith formations, the early Precambrian strata in the northern part ofthe North China platform may be divided into the stable stratigraphic region in the west and the mobilestratigraphic region in the east. Based on unconformities, either stratiragphic or tectonic, as well as significantmetamorphic thermal events, the two regions may be stratigraphically defined as follows: 1) the middleArchaean Fuping Supergroup composed of the Chenzhuang and Wanzi Groups (stable areas), and the middleArchaean Qianxi Group (mobile area), whose upper limits are all dated at 2800 Ma; and 2) the upper ArchaeanWutai Supergroup composed of the Longquanguan, Shizui and Taihuai Groups (stable areas), and the upperArchaean Zunhua, Dantazi and Zhuzhangzi Groups (mobile areas). whose upper limits are all dated at 2500Ma. A correlation of the above-mentioned units is also made. The lower Proterozoic Hutuo Group of the sta-ble region is adjusted to comprise the Gaofan, Doucun, Dongye and Guojiazhai Groups. The upper limit of theGaofan Group is placed at 2350 Ma, Dongye 1850 Ma and Guojiazhai (the lower limit of the Changcheng Sys-tem) 1700 Ma.

关键词： meta the Yanshan Region and the Eastern Sector of the Yinshan Mountains The Early Precambrian Rocks,Their Ages,division and Correlation of the Taihang-Wutai Region

Evolutionary Stages of the Earliest Skeletal Fauna and division and Correlation of the Precambrian-Cambrian Boundary Strata

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Acta Geologica Sinica(English Edition) 1988年第3期1卷 233-248+349页

作者： Yue Zhao Institute of Geology, Chinese Academy of geological Sciences, Beijing Institute of Geology Chinese Academy of Geological Sciences Beijing

Through an analysis of the earliest fossils in the Precambrian-Cambrian boundary beds in various parts ofthe world, especially in the Yangtze and Siberia platforms, the author has found that the evolution of the ea-rliest skeletal animals may be divided from older to younger into three stages. The first stage (theAnabarites-Protohertzina fauna) is represented by the Anabarites-Protohertzina zone of the Meishucunian Stagein the Yangtze platform and the A. trisulcatus and P. cristata zones of the Manykayn Stage in Siberia. The sec-ond stage (the earliest orthothecimorphid and mollusc fauna) is represented by the Paragloborilus-Siphogonuchites zone of the Meishucunian Stage and the Aldanocyathus sunnaginicus zone of the TommotianStage. The third stage (the earliest hyolithimorphid and lapworthellid fauna) is represented by the Sinosachiteszone of the Meishucunian Stage and the *** and *** zones of the Tommotian Stage. The threeevolutionary stages can be used as a criterion for worldwide correlation.

关键词： Evolutionary Stages of the Earliest Skeletal Fauna and division and Correlation of the Precambrian-Cambrian Boundary Strata

Structural Characteristics and Evolution of Jurassic Basins in the East of Middle Qilian Block

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Journal of China University of Mining and Technology 2003年第1期13卷 35-39页

作者：郑孟林李明杰曹春潮张勇军徐世陆 Basin and Reservoir Research Center Petroleum University geological Research Center Geophysical Prospecting Bureau Geophysical and geological division Hebei Bureau of Geology

Structural characteristics of the Jurassic basins of Xining, Minhe, and Xiji in the east of middle Qilian were researched based on the data obtained by gravitational, magnetic, and seismic methods. The result shows that each of these three basins is an independent structural unit with a NW strike and being separated by upheavals. Two groups of faults with NW and NE directions are developed in the basin, which controls the formation and evolution of the (Jurassic basins). The NW faults are the main ones while the NE faults are the secondary for controlling the sedimentation. Of the three basins, the Minhe basin is the favorable prospecting area.

关键词： east of middle Qilian Jurassic basin structural characteristic evolution prospecting of oil and gas

Quaternary Stratigraphic division and Paleoenvironmental Evolution Observed from Core LZK1 on Hengsha Island, Shanghai

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Acta Geologica Sinica(English Edition) 2020年第4期94卷 1167-1177页

作者： KE Xue XIE Jianlei ZHANG Zongyan ZOU Yarui WANG Guoquan Institute of geological Survey China University of GeosciencesWuhan 430074China State Key Laboratory of Biogeology and Environmental Geology China University of GeosciencesWuhan 430074China Shanghai Institute of geological Survey Shanghai 200072China Wuhan Center China Geological SurveyWuhan 430205China Hubei Institute of Geosciences Wuhan 430034China Department of Earth and Atmospheric Sciences University of HoustonHoustonTX 77204USA

The Quaternary sediments in the Yangtze delta are loose and lack precise stratification marks in the lithology. Moreover, due to the limitations of dating methods, it is difficult for Quaternary cores to deliver accurate age constraints. Thus, it is a challenge to establish the Quaternary stratigraphic framework. Gravity core LZK1 was drilled on Hengsha Island, Shanghai, in the Yangtze delta, in 2012. The core was terminated at 403.83 m below the local land surface, the uppermost 291.2 m comprising a thick sequence of Quaternary sediments. This study investigated the stratigraphic subdivision and paleoenvironmental change of the Quaternary sediments. From bottom to top, the Quaternary stratigraphic sequence can be subdivided into the lower Pleistocene Anting Formation, Middle Pleistocene Jiading Formation, Upper Pleistocene Chuansha Formation and Nanhui Formation, Holocene Loutang Formation, Shanghai Formation, and Rudong Formation. According to this study, the Hengsha Island area was dominated by a freshwater lacustrine environment during the early Pleistocene, an alternation of shallow lake and shore lake environment during the Middle Pleistocene, a delta plain to lagoonal environment during the early Upper Pleistocene, a fluvial channel to floodplain environment from the LGM(Last Glacial Maximum) to the end of the Upper Pleistocene, and a delta environment during the Holocene.

关键词： chronostratigraphic framework paleoenvironmental evolution marine transgression Quaternary Yangtze delta

Features of Minerogenic Series Related to Continental VolcanicRocks in the Southeastern Coastal Area of China-A Case Study of the Daiyunshan-ShiniushanVolcanic Depression in Fujian

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Acta Geologica Sinica(English Edition) 2000年第3期74卷 492-499页

作者： ZHU Yulin No.2 geological Exploration Bureau of MMI 115 East St.Fuzhou 350001

The Daiyunshan-Shiniushan volcanic depression in Fujian Province is situated in a volcanic belt of the southeast coastal area in China along the west Pacific Ocean. A new breakthrough has been made in the exploration of gold and silver ore deposits in recent years. The minerogenic series of the Daiyunshan-Shiniushan volcanic depression is discussed in this paper based on the analysis of major metallogenic types and factors. According to the study of enormous ore deposits and occurrences in the study area, two minerogenic series have been recognized: 1. Late Jurassic Au-Ag-Pb-Zn minerogenic series related to intermediate-acid, acid volcanic formations; 2. nonmetallic minerogenic series (pyrophyllite, alunite pearlite, andalusite, zeolite, corundum and so on) related to intermediate and acid volcanic formations. The division and study of the minerogenic series have revealed metallogenic and time-space distribution characteristics of the ore deposits in the volcanic belt of the southeast coastal area in China, which are of economic importance for metallogenic prognosis.

关键词： continental volcanic rock minerogenic series Southeast China

Industrial minerals and rocks, aggregates and natural stones in the Nordic countries

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Episodes 2008年第1期31卷 133-139页

作者： Kurt Johansson Rune B. Larsen Markku J. Lehtinen Lars Persson Mika Raeisaenen Stig A. Schack Pedersen Paer Weihed Nils-Gunnar Wik Swedish Stone Industries Federation Industrigatan 6 SE-291 36 Kristianstad Sweden. NTNU NO-7491 Trondheim. Norway. Nordkalk Oyj Abp Poikkitie 1 FI-53500 Lappeenranta Finland. geological Survey of Sweden SE-751 87 Uppsala Sweden. geological Survey of Finland PO Box 96 FI-02151 Espoo Finland. geological Survey of Denmark and Greenland Ф. Voldgade 10 DK-1350 Cph. Denmark. division of Ore Geology and Applied Geophysics Lulea University of Technology SE-971 87 Lulea Sweden. geological Survey of Sweden SE-223 50 Lund Sweden.

The Nordic countries, including Greenland, have a long tradition in mining. The industrial minerals sector is expanding in most Nordic countries and extensive development has taken place during the last few years. The main commodities mined are carbonate rocks, quartz, feldspar, apatite, olivine and talc. A number of diferent types of dimension stones are quarried in all countries. Rock aggregates are increasingly important, replacing sand and gravel aggregate as construction materials in some countries due to the need to protect ground water supplies.

关键词：工业矿产岩石集合体天然石材北欧地区

Raman Spectroscopy of Garnet-group Minerals

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Chinese Journal Of Geochemistry 1994年第2期13卷 176-183页

作者：彭明生李迪恩 H.K.MAO E.C.T.CHAO division of Quantum Mineralogy Department of Geology Central University of Technology Changsha China Geophysical Laboratory Carnegie Institution of Washington Washington D.C. USA U. S. geological Survey 959 National Center Reston Virginia USA

The Raman spectra of the natural end members of the garnet-group minerals, which include pyrope, almandine and spessarite of Fe-Al garnet series and grossularite, andradite and uvarovite of Ca-Fe garnet series, have been studied. Measured Raman spectra of these minerals are reasonably and qualitatively assigned to the intemal modes, translational and rotatory modes of SiO4 tetrahedra,as well as the translational motion of bivalent cations in the X site. The stretch and rotatory Alg modes for the Fe-Al garnet series show obvious Raman shifts as compared with those for the Ca-Fe garnet series, owing to the cations residing in the X site connected with SiO4 tetrahedra by sharing the two edges. The Raman shifts of all members within either of the series are attributed mainly to the properties of cations in the X site for the Fe-Al garnet series and in the Y site for the Ca-Fe gamet series.

关键词：拉曼光谱石榴石榴子石铁铝榴石晶体结构

Magnetic Signature of the Kusi Mineral Prospect, Papua New Guinea

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Journal of Earth Science and Engineering 2012年第4期2卷 209-219页

作者： Nathan Taovasi Mosusu geological Survey division Mineral Resources Authority Port Moresby 0121 Papua New Guinea

A ground magnetic survey was conducted on the Kusi mineral prospect, Papua New Guinea, to provide insights into the magnetic properties of the mineralisation and help define drill targets for an exploration programme. The results of the survey suggest three distinct magnetic zones：（1） a magnetic high zone covering the northern portion of the survey area; （2） a northeast-southwest trending magnetic low zone occupying the southern portion and （3） a possible buried intrusive body separating the magnetic high from the low magnetic zone. The results of the survey suggest that drilling is concentrated on the zone of low magnetic response, and the periphery of the interpreted intrusion is adjacent to the contact to the limestone defining the mineralisation style of the two zones. A further ground magnetic survey is required to determine the western limits of the low magnetic zone.

关键词： Ground magnetism mineralization porphyry hydrotherm.