 | | Journal (article/letter/editorial) | | mineralization in a karstic environment in central Sri Lanka Kapila Dahanayake 1,2 and S. M. N.D. Subasinghe...Road, Kandy, Sri Lanka 2 Department of Geology, University of Peradeniya, Peradeniya, Sri Lanka Abstract...Abstract. At Eppawala in central Sri Lanka secondary phosphate mineralization is intimately associated with laminated...development of a modern phosphorite in a karstic environment. Sedimentary phosphorite deposits are reported...accepted explanation for the formation of marine phosphorite on continental shelves and slopes is based by |  | | Journal (article/letter/editorial) | | E R I N G P H E N O M E N A - AN EXAMPLE FROM SRI LANKA DAHANAYAKE K.*, ** and SUBASINGHE S.M.N.D. *...Studies, Kandy, Sri Lanka and • * Department of Geology, University of Peradeniya, Sri Lanka ABSTRACT In...In the hamlet of Eppawala in North Central Sri Lanka, about 200 km from its capital, Colombo, lies a large... rubber and coconut. The phosphate deposit at Eppawala is essentially a thick weathering profile which...identify the same as a terrestrial phoscrete-type phosphorite that had formed due to tropical weathering, erosion |  | | Journal (article/letter/editorial) | | petrological characteristics of Eppawala phosphate deposits, Sri Lanka Received: 15 August 2000 / Accepted:...Abstract The apatite-bearing carbonate rocks at Eppawala, Sri Lanka occur as massive, discontinuous bodies in...important phosphate deposits. The ore bodies at Eppawala contain £42% P2O5, and citric acid solubility...a few millimetres to several decimetres). The Eppawala rocks are characterised by low silica (£0.41%)...Geology, University of Peradeniya, Peradeniya, Sri Lanka E-mail: apitawala@yahoo.com M. Schidlowski Max-Planck |  | | Journal (article/letter/editorial) | | Geology, University of Peradeniya, Peradeniya ( Sri Lanka ) (Acceptedfor publicationJuly 4, 1986) Abstract...derived from high-grade metamorphic rocks from Sri Lanka are hydroxyapatite as indicated by E P M A and...mosaic bound fragments. Chondrite-, shale- and phosphorite concretion-normalized R E E patterns of these...post-depositionalreworking. 1. Introduction In Sri Lanka we have observed the weathering processes of two...Highland Group (2.5-2.0 Ga) at Eppawala near Anuradhapura in Sri Lanka (Jayawardena, 1976). The apatite |  | | Journal (article/letter/editorial) | | phosphatic marble to exploitable apatite deposit, Sri Lanka KAZUE TAZAKI a n d W. S. FYFE Department of Geology...Department of Geology, University of Peradeniya, Sri Lanka Abstract--Weathering of a granulite-amphibolite...granulite-amphibolite facies phosphatic marble from Eppawala. Sri Lanka is described. During the weathering process, apatite...Primary metamorphic phosphates in the marble from Sri Lanka are hydroxyapatite, as indicated by EPMA and XRD...deposit was discovered at Eppawala in the Anuradhapura district of Sri Lanka in 1971. The apatite complex |  | | Journal (article/letter/editorial) | | sediments, stream sediments, lake sediments, phosphorite deposits, industrial waste products, such as...abundant deposits around Meizhou City, Guangdong Province, China with the highest ΣREE range of 1162 µg/g...REE deposits in the Chilean coastal range of the central Andes were found to be up to 2000 µg/g [25]. Beach...Shelf Bottom sediments 104 to 220 [45] Central North Pacific Ocean Siliceous sediments 810.4 [46]...Eastern South Pacific Deep-sea mud 1000–2230 North Pacific (east and west of Hawaiian Islands) Deep-sea |  | | Journal (article/letter/editorial) | | Precambrian uranium deposits of the Blind River District, Canada, Naturwissenschaften, 61, 449, Berlin...geochemistry of the Precambrian Lomagundi carbonate province, Rhodesia, Geochim. Cosmochim. Acta, 40, 449–455...the vicinity of the Almadén mercury deposit (Province of Ciudad Real, Spain), in D.D. KLEMM and H.J...Precambrian scheelite deposits from the San Luis Province, Argentina, in K. GERMANN (Ed.), Geochemical Aspects...Arneth, Genesis of upper Proterozoic-Cambrian phosphorite deposits from India: isotopic Inferences from |  | El Bamiki, Radouan, Raji, Otmane, Ouabid, Muhammad, Elghali, Abdellatif, Khadiri Yazami, Oussama, Bodinier, Jean-Louis (2021) Phosphate Rocks: A Review of Sedimentary and Igneous Occurrences in Morocco. Minerals, 11 (10) 1137 doi:10.3390/min11101137 | Journal (article/letter/editorial) | | provide new insights on the relationship between phosphorite formation and the major biogeochemical cycles... ijolite, syenite, fenite, nephelinite Sri Lanka Eppawala Ediacaran (~550 Ma) 38 Canada Lackner...Maastrichtian to the Ypresian. (Tethyan) phosphogenic province [80]. They were deposited during the Upper Creta-...Abdoun Basin provided markers theTethyan Thanetian province and Basal Ypresian [85]. Accordingly,accumulations...period compared to other deposits in the Tethyan province (Figure 5). The marine-dominated sediment bounded |  | | Report (issue) | | deposit, deposit/site name, deposit type, type of phosphorite, general age of mineralization, specific age...Deposit/Site_Name, is meant to identify the area, deposit, district, mine, or occurrence to which the geologic, economic...duplicates, for some areas we report information for a district or area, as well as for specific deposits or mines...These fields include: Deposit Type, Type of Phosphorite, General Age of Mineralization, Specific Age...potential and palaeogeography of an Upper Cretaceous phosphorite belt in the southeastern desert of Jordan: Cretaceous |  | Chakhmouradian, Anton R., Reguir, Ekaterina P., Zaitsev, Anatoly N., Couëslan, Christopher, Xu, Cheng, Kynický, Jindřich, Mumin, A. Hamid, Yang, Panseok (2017) Apatite in carbonatitic rocks: Compositional variation, zoning, element partitioning and petrogenetic significance. Lithos, 274. 188-213 doi:10.1016/j.lithos.2016.12.037 | Journal (article/letter/editorial) | | Pedology, Mendel University, Brno, Czech Republic g Central European Institute of Technology, Brno University...very low Ca and high Si in apatite from Eppawala, Sri Lanka; formulae derived from their data show as...Se-Chahun iron oxide-apatite deposit, Bafq PT district, Iran: Insights from paragenesis and geochemistry...characteristics of apatites in granitoids from central Kazakhstan: implications for petrogenesis and mineralization...to Mine: the Key Example of the Kola Alkaline Province. Mineralogical Society of Great Britain and Ireland |  | Wang, Zhen-Yu, Fan, Hong-Rui, Zhou, Lingli, Yang, Kui-Feng, She, Hai-Dong (2020) Carbonatite-Related REE Deposits: An Overview. Minerals, 10 (11) 965 doi:10.3390/min10110965 | Journal (article/letter/editorial) | | Mianning in Sichuan province, the Gannan in Jiangxi province and northern Guangdong province are the major...xenotime, parasite occur in carbonatite or magmatic phosphorite, and the entire rock body is mineralized. REE...large deep fault that crosses the REE west coast of North America. is mostly concentrated in the Mesozoic...Ga, [20]) and the Miaoya REE deposit in Hubei province (232 Ma, association with Nb-containing minerals...on the northern and southeastern margins of the North China Craton, respectively; the Maoniuping REE deposit |  | | Book | | major producing districts, or a representative district if there are many. We name the chief mining companies...graphite supply must come not merely from one district but from a single mine. Thus the physical properties...extremes of unit value and place value. Although the central realm of the industrial minerals and rocks is clear... The takeover of soda-ash markets, at least in North America, by the mineral trona is another marked...Geology of Industrial Minerals, held annually in North America, provide much geological and related information |  | | Book | | affects its present characteristics as a minera1 province, because of the exposure of the various depth...Buddington (1959) in his classical paper on the North American granites, proposed a three-fold depth subdivision...multiphase, nested, and include a subsidence of the central block and the downward passage of tabular plutons...Peru, map and distribution of ore deposits in the central sector. Based on the Mapa Metalogenico del Peru...Arequipa, Toquepala-Cerro Verde district; in the centre, Morococha and in the north, Michiquillay) straddle the |  | | Book | | affects its present characteristics as a mineral province, because of the exposure of the various depth...Buddington (1959) in his classical paper on the North American granites, proposed a three-fold depth subdivision...multiphase, nested, and include a subsidence of the central block and the downward passage of tabular plutons...Peru, map and distribution of ore deposits in the central sector. Based on the Mapa Metalogenico del Peru...Arequipa, Toquepala-Cerro Verde district; in the centre, Morococha and in the north, Michiquillay) straddle the |  | | Report (issue) | | Sci.) North America Central and South America Australasia Far East Southern Africa Central and East...East Africa West Africa North Africa and the Middle East Northern Europe Western Europe Eastern Europe...fale micolame)a-mmit-lelig- mom) eerele] in the North-East of the “lron Square“. Apart from rich ore,...Canada Cameroons Caribbean Countries Central African Empire Central American Countries Chad Chile China...431 South West Africa 443 Soviet Union Spain Sri Lanka Sudan Surinam Swaziland Sweden 531 511 408 484 |
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