• 자원환경지질
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• 제19권spc호
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• pp.73-94
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• 1986

필자(筆者)는 1981년(年) 파리, 1983년(年) 마닐라에서 개최되었던 CGMW 회의(會議)에 참석(參席)함을 계기로 세계공통(世界共通)의 제작규약(製作規約)을 준수(遵守)해 가면서 대한지질도(大韓地質圖) 및 한국의 지체구조도(地體構造圖)를 기본도(基本圖)로 하여 그간의 광상조사연구자료중(鑛床調査硏究資料中) 444개(個) 주요대상광상(主要對象鑛床)을 선정(選定), 이들 자료(資料)를 정리종합(整理綜合) 분류(分類)하여 1983년(年)에 한국의 광상생성도(鑛床生成圖)를 발간(發刊)(한국동력자원연구소(韓國動力資源硏究所))한 바 있다. 처음 시도(試圖)된 일이었을 뿐 아니라 대상개개(對象個個) 광상(鑛床)의 정밀조사자료(精密調査資料)가 부족(不足)하여 흡족(洽足)하지 못하였음에 차후(次後) 보다 보완(補完)된 충실(充實)한 내용(內容)의 광상생성도(鑛床生成圖)를 기대(期待)하여 마지 않는다.

• 대한자원환경지질학회:학술대회논문집
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• 대한자원환경지질학회 2003년도 춘계 학술발표회 논문집
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• pp.184-185
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• 2003

The Cretaceous magmatism in the Gyeongsang Basin, which intruded into the upper crust or extruded throughout ENE-trending volcanic belts in southern Korea, led to the formation of two contrasting metallogeinic provinces: the Haman-Gunbug-Goseong and the Euiseong. The Haman-Gunbug-Goseong metallogenic province in the southwestern portion of the Gyeongsang Basin consists of dominantly nonmarine sedimentary rocks (e.g., the Sindong and Hayang groups) which are rarely intercalated with andesitic pyroclastics and flows. (omitted)

• 자원환경지질
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• 제27권4호
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• pp.363-373
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• 1994

The Cretaceous granitic rocks show differences in rock types and chemical compositions according to metallogenic provinces of copper, lead zinc and molybdenum in the Gyeongsang basin. Jindong granites are of granodiorite~quartz diorite~diorite in Cu-province; Makeunsan/Yucheon-Eonyang granites, granodiorite~granite in Pb Zn-province; Onjeongri-Yeonghae granites, granodiorite~quartz diorite in Mo-province, and there is a trend that productive masses are less differenciated than barren masses in Cu and Pb-Zn provinces whereas productive masses are more differenciated than barren masses in Mo province. Metallogenic provinces are distinguishable by variations of major and trace elements. The Cretaceous granitic rocks are highest in the content of Ca, Mg and other basic major elements and lowest in the content of K and Na in Cu provicne; the variation trends are vice versa in Pb-Zn province. Trace elements such as Rb and Sr show variations related to K and Ca, and metallogenic provinces are also distinguishable by their ratios. The granitic rocks of Mo province have intermediate content of major and trace elements, but are clearly distinguishable from Jindong granites and partly overlapped by Yucheon-Eonyang granites. Chlorine content in biotites is higher in a productive mass than in a barren mass in Cu province. Therefore, the mineralogical and chemical compositions are applicable as geochemical index to distinguish the types of mineralizaion, and productive and barren masses of the Cretaceous granitic rocks in the Gyeongsang basin.

• 자원환경지질
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• 제38권4호
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• pp.493-497
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• 2005

• 자원환경지질
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• 제36권4호
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• pp.257-268
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• 2003

한반도 경상분지의 백악기 화성활동은 지체구조의 변화에 기인하여 광화시기를 달리하는 두 가지 유형의 특징적인 비철금속 광상구인 함안-군북-고성(-창원) 및 의성 광상구를 형성하였다. 함안-군북-고성(-창원) 광상구에서 동-철(-금) 광화작용의 광화시기는 89∼81 Ma이고, 이와 관련된 열수계는 광화초기 고염농도(20∼55 equiv. wt. % NaCl)의 고온성(300∼50$0^{\circ}C$) 광화유체의 특징을 보이고 있으며, 광화초기에 정출된 석영의 산소 동위원소비(${\delta}^{18}O$)는 마그마수의 영역에 해당하지만, 광화 후기에는 마그마수 유입량의 감소와 함께 점차 천수의 유입량 증가에 의한 희석 및 혼합양상에 기인하여 상대적으로 낮은 동위원소값을 보이고 있다. 이러한 열수계는 반암형 동광상에서 특징적으로 나타나는 광화유체의 진화과정과 매우 유사한 경향을 보이고 있다. 반면, 의성 광상구에서의 다금속 광화작용의 광화시기는 78∼60Ma(주광화기 약 70∼65Ma)이고, 이와 관련된 지열수계는 전반적으로 저염농도(1∼7 equiv. wt. % NaCl)의 중ㆍ저온성 광화유체(200∼40$0^{\circ}C$)에서 형성되었으며, 맥상 석영에서 나타는 ${\delta}^{18}O$값은 동위원소적으로 마그마수에 비하여 상대적으로 낮은 값을 지시하여 광액 형성시 마그마수의 기여도가 극히 미약하였음을 지시한다. 경상분지에서 비철금속 광상의 성인은 남서부 함안-군북-고성(-창원) 광상구에서 천부 관입 화강암체와 관련된 근지성 환경의 동-철(-금) 광화작용과 북서부 의성 광상구에서 화산활동이 우세한 원지성 환경의 다금속 광화작용으로 구분할 수 있으며, 이러한 광화작용의 차이는 광화시기를 달리하는 관계화성암의 시(${\cdot}공간적 차이에 기인한다.

• 대한자원환경지질학회:학술대회논문집
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• 대한자원환경지질학회 2005년도 춘계 학술발표회 논문집
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• pp.78-81
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• 2005

• 대한자원환경지질학회:학술대회논문집
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• 대한자원환경지질학회 2000년도 춘계 공동학술발표회
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• pp.110-110
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• 2000

Temporal and spatial distribution patterns of the magmatic rocks and associated ore deposits in the Mesozoic magmatic - metallogenic belt along the Yangtz River, Anhui Province are used to determine and discuss the crust - mantle interaction processes. The magmatic rocks are Cu - Au mineralized high - K calc - alkalic intermediate ¬acidic (CAK) and Fe - Cu mineralized high - Na alkalic - calc intermediate - basic intrusive rocks (FCN) in the central part of the belt and grade to Cu - Mo - Pb - Zn - Ag mineralized calc - alkalic granitoids (CMG) and A - type granites (AG) in the southern and northern parts of the belt. Samples from the CAK and CMG yield Rb - Sr isochron ages of 137 - 140Ma with $(^{87}Sr/^{86}Sr)_{o}$ = 0.7060 - 0.7101, while those from the FCN and AG yield the ages of 120 - 129Ma with $(^{87}Sr/^{86}Sr)_{o}$ = 0.7047 - 0.7077. The Sr isotope ratios, CriTh ratios 0.4 - 3.1), Eu/Eu* ratios < 0.79 - 1.05) and initial epsilon (Nd) values (-16.6 - -6.3) for the CAK and CMG are consistent with magma derivation from old metamorphic basement rocks rich in metallogenic elements through a two - stage process of mantle - derived magma underplating caused by primary lithosphere extension and subsequent partial melting. On the basis of Sr isotope data, CriTh ratios (3.4 - 13.8), Eu/Eu* ratios (0.86 - 1.13) and initial epsilon (Nd) values (-7.7 - +1.4), the FCN and AG are considered to be formed through syntexis with material input from the mantle that resulted from further lithosphere extension followed by mantle - derived magma underplating on a large scale.

• 자원환경지질
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• 제13권3호
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• pp.167-184
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• 1980

The granitic plutons associated with Ogcheon geosynclinal zone can be grouped into three different subzones; SE-Subzone for the migmatitic and schistose granites of the southeast margin, 101-181m.y. old; NW-Subzone for those of the northwest margin, 112-163m. y. old; and C-Subzone for those of central part of the zone, 63-183m.y. old. The intrusives in C-Subzone are further subdivided into the older, adamellite to granodiorite (148-183m.y. old) and the younger, perthitic granites (63-106m,y. old). The metallogenic distribution of South Korea suggests that, in the Ogcheon Zone, it is possible to delineate an elongated polymetallogenic province in the general orientation of the zone intimately related with the migmatite and plutonic zones mentioned. Moreover, the mineralization in the province was basically controlled by the patterns of local geology involving country rocks and related igneous bodies, that permit subdivision of the province into the following three parts: Northeast (NE) Province consists dominantly of thick Paleozoic calcareous sediments; Middle (M) Province is characterized by predominant argillaceous and partly calcareous sediments of Precambrian to Late Paleozoic age; and Southwest (SW) Province consisting mainly of volcanic and arenaceous sediments of Mesozoic age. The three different plutonic zones with three different country rock provinces above mentioned make a combination which consists of nine classes. Each class can be assumed to be characterized by specific mineralization type. In order to classify the mineralization types, the present study sampled twenty six ore deposits and mineralized areas in Ogcheon zone as shown figure 2; eight ore deposits from plutonic SE-Subzone, ten from the plutonic NE-Subzone and eight from the plutonic C-Subzone. The characteristics of the classes are as follows: NE-SE is predominant in Au-Ag vein and Sn-migmatite of katazonal occurrence; NE-C is most productive in Pb-Zn and remarkable in Fe contact deposit in mesozone and partly Pb-Zn-Cu skarn in limestone and subordinate in mesozone and partly Pb-Zn pipes; M-SE is considerable in Au-Ag vein and rare elements (Nb, Ta, etc.) of pegmatite; M-C is predominant in F-veins in epizone and Mo-W, Fe, Cu veins occur in replacement type; M-NW is productive in Fe metamorphic and skarn types, partly remarkable in Cu, Pb-Zn contact; SW-SE is barren in mineralization related to Jurassic igneous rocks; SW-C is predominant in alunite and pyrophyllite in tuffs; and SW-NW is scarece in Pb-Zn, Cu, As and Au-Ag veins.

• 자원환경지질
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• 제23권2호
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• pp.143-159
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• 1990

There is clear difference in content of the major and trace elements between Masan granites of Cu province and Yucheon-Eonyang granites of Pb-Zn province in the Yucheon Basin: the former has low content in K(2.08%), Na(2.42%) and Rb (127ppm), and high content in Ca(3.75%), Mg(1.42%) and Sr(304ppm) whereas the latter has high content in K(3.56-3.60%), Na(3.05-3.06%) and Rb(144-161ppm), and low content in Ca(0.62-0.96), Mg(0.21-0.26%) and Sr(136-157ppm). Ore metals in granites also show slight difference between two areas: Masan granites have slightly higher Cu content(18ppm) than Yucheon-Eonyang granites(13, 14ppm), whereas Yucheon granite(29ppm) has slightly higher Pb content than Masan granites(25ppm). Thus, it may be possible to apply geochemical difference of the granites to distinguish whether a Cretaceous granite mass is related to copper or lead-zinc mineralization, and whether it belongs Cu-province or Pb-Zn province in the Yucheon Basin.

• 자원환경지질
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• 제28권4호
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• pp.389-394
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• 1995

Yugu-Kwangcheon Au-Ag Province is connected to the southwestern part of the Cheonan Province and includes the Gubong (one of the biggest gold mine in past), Daebong and Samgwang mines. Cadmium concentrations in sphalerite of Yugu-Kwancheon Province is higher than those of other Au-Ag provinces and could be the source of the heavy metal contaminations. Heavy metals are present in rock-soil-plant-human system from natural geological materials, and dietary intake through this system makes a significant contribution to the ingestion of heavy metals by man. In order to examine the degree and extent of heavy metal contaminations in the Gubong, Daebong and Samgwang mine areas of Yugu-Kwangcheon Province, soil, stream water, sediment and crop plant samples were taken and analyzed for Cd, Cu, Pb and Zn by Atomic Absorption Spectrometry (AAS) and Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). Cadmium and Pb concentrations in paddy/farm soils and stream sediments from the Gubong and Samgwang mine areas are higher than those in uncontaminated soils. Lead concentrations in crop plants cultivated in these soils are high up to $0.38{\mu}g/g$ in rice grain and $4.5{\mu}g/g$ in sesame. In these mine areas, regular consumption of crop plants by the local population would seem to pose a potential health problems from long-term Pb exposure. The biological absorption coefficient in rice grain for heavy metals varies in the order $C_d=Zn>Cu>Pb$ and the relationship between Cd concentrations in soils and crop plants is expressed by the equation $Cd_{plant}=0.11245\;Log\;Cd_{soil}+0.13472$.