 | | Book | | London, Geological Society of Malaysia, Jabatan Mineral dan Geosains Malaysia, Oxford University Press and...through Borneo. Although, he never set foot in Sarawak or Sabah, but had journeyed through Kalimantan...of Sarawak and Sabah (then North Borneo). The international border between Kalimantan and Sarawak is...Bomeo, and in broad outline the geology of much of Sarawak was shown to be an extension of that of Kalimantan...later summarized their geology in Kalimantan, Sarawak, and Sabah under the name 'Eocene Phyllite Formation' |  | | Journal (article/letter/editorial) | | ounces of gold. Mesel, Sulawesi, and Bau (Jugan and Tai Parit), Sarawak, also possessed multimillion ounce...several were sites of historical mining (Mesel, Bau, and Kyaukpahto). The majority, however, are virgin...associated with gold mineralization (Abong, Mesel, Bau, Buduk and Sepon). Some deposits that have been described...described as SHG type, such as Selingsing, Malaysia (Makoundi et al., 2014); Langu in southern Thailand...(Farmer & Hendri, 1997), Jugan and Tai Parit, and Sarawak (Shuch, 1993) and Sepon, Laos (Cromie, 2010). At |  | | Journal (article/letter/editorial) | | (INSTeG) Universiti Teknologi Malaysia, Johor Bahru, UTM Skudai 81310, Malaysia 2 Korea Polar Research Institute...alteration minerals such as muscovite, kaolinite, illite, montmorillonite, epidote, chlorite and biotite...for scientific research (Australian Antarctic Division, 1998; http://www.ats.aq/e/ep.htm). In this research...KAl2(AlSi3O10)(OH)2, kaolinite: Al2(Si2O5)(OH)4, illite: K0.65Al2.0 (Al0.65Si3.35O10)(OH)2, montmorillonite:...scenes of the study area. Muscovite, kaolinite, illite, montmorillonite, epidote, chlorite and biotite |  | | Report (Issue volume) | | Photogeological Divisions; more recently a Special Surveys Division was added for the purpose of carrying out comprehensive...the demand for the work of the Special Surveys Division. Economic mineral surveys have been carried out...September respectively and joined the Special Surveys Division. Mr. R. B. Evans, Senior Scientific Officer, Mr...June respectively, and joined the Geophysical Division. Mr. J. A. W. Eldred, Scientific Officer, Mr....Tanganyika 3, Jamaica 2, Uganda 2, Britisl1 Guiana I, Sarawak 1� Sierra Leone 1. 1965 19 British Guiana 2 |  | | Journal (article/letter/editorial) | | oxides) and low-temperature hydrothermal type (illite, alunite, smectite, kaolinite along with carbonates...hydrothermal alterations (biotite, muscovite, sericite, illite, kaolinite, alunite, 6 pyrophyllite, chlorite...(calcite index) (Zhang et al., 2007); (2) PCA on illite, chlorite and muscovite indexes (Moore et al.,...ASTER band 5, 6 and band 8 respectively. Mostly the illite/smectite ratio shows an erroneous result for vegetated...high values for band ratios for minerals such as illite/smectite, gossan, kaolinite, phengite, alunite |  | Xie, Guiqing, Mao, Jingwen, Richards, Jeremy P., Han, Yingxiao, Fu, Bin (2019) Distal Au Deposits Associated with Cu-Au Skarn Mineralization in the Fengshan Area, Eastern China. Economic Geology, 114 (1) 127-142 doi:10.5382/econgeo.2019.4623 | Journal (article/letter/editorial) | | Bureau, 2013). Argillic alteration consists of trace illite and kaolinite (confirmed by X-ray diffraction)...cm 22cm 1 cm EF Fl F G sulfides dike with illite- kaolinite alteration limestone clast Cal 1...central Peru (Alvarez and Noble, 1988), Bau district in Malaysia (Percival et al., 1990, 2018), and McCoy-Cove...gold skarns, and intrusive rocks, Bau mining district, Sarawak, Malaysia: Mining Geology, v. 40, p. 1–16...to epizonal intrusions, Bau district, Island of Borneo, Sarawak, East Malaysia: Reviews in Economic Geology |  | Dai, Shifeng, Xie, Panpan, Ward, Colin R., Yan, Xiaoyun, Guo, Wenmu, French, David, Graham, Ian T. (2017) Anomalies of rare metals in Lopingian super-high-organic-sulfur coals from the Yishan Coalfield, Guangxi, China. Ore Geology Reviews, 88. 235-250 doi:10.1016/j.oregeorev.2017.05.007 | Journal (article/letter/editorial) | | the coal, and to a lesser extent, with illite or mixed-layer illite/smectite. 4.2.3. Rare earth elements...respectively) was calculated using the following formulae (Bau and Dulski, 1996; Dai et al., 2016a). CeN/CeN*= CeN/(0...conditions and high-temperatures (Sverjensky, 1984; Bau, 1991). In surficial environments (e.g., peat accumulation...if additional high-temperature events are absent (Bau, 1991). Positive Eu anomalies in coal are therefore...Methods, ASTM International, West Conshohocken, PA. Bau, M., 1991. Rare-earth element mobility during hydrothermal |  | Sajid, Zulqarnain, Ismail, Mohd, Zakariah, Muhammad, Tsegab, Haylay, Gámez Vintaned, José, Hanif, Tanzila, Ahmed, Nisar (2020) Impact of Paleosalinity, Paleoredox, Paleoproductivity/Preservation on the Organic Matter Enrichment in Black Shales from Triassic Turbidites of Semanggol Basin, Peninsular Malaysia. Minerals, 10 (10) 915 doi:10.3390/min10100915 | Journal (article/letter/editorial) | | Triassic Turbidites of Semanggol Basin, Peninsular Malaysia Zulqarnain Sajid 1, * , Mohd S. Ismail 1 , Muhammad...Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia; suhaili.ismail@utp.edu.my (M.S.I.); nooramin...northwestern part of the Western Belt, Peninsular Malaysia. The black shale occurs as a dark grey to black...analog for a source rock in offshore Peninsular Malaysia. The present study includes detailed mineralogical...Merah, and Nami areas in northwestern Peninsular Malaysia. The primary focus of this study is to investigate |  | | Book (edition) | | ..................... 946 IV.3. North Borneo (Sarawak, Sabah, Brunei) .................................Proc. AAPG-GSM Int. Conf. 1994, Bull. Geol. Soc. Malaysia 37, p. 363-394. (online at: https://gsmpubl.files...mineralisation in Southeast Asia. Bull. Geol. Soc. Malaysia 40, p. 77-111. (online at: https://gsmpubl.files...of SE Asia, Kuala Lumpur 1972, Bull. Geol. Soc. Malaysia 6, p. 11-16. (online at: www.gsm.org.my/produ...Guntoro, A. (1999)- A new propose of geological division in the Indonesian archipelago from tectonic evolution |  | Malo, M., Moritz, R., Dube, B., Chagnon, A., Roy, F., Pelchat, C. (2000) Base Metal Skarns and Au Occurrences in the Southern GaspeAppalachians: Distal Products of a Faulted and DisplacedMagmatic-Hydrothermal System along the Grand Pabos-Restigouche Fault System. Economic Geology, 95 (6) 1297-1318 doi:10.2113/gsecongeo.95.6.1297 | Journal (article/letter/editorial) | | corrensite, smectite, kaolinite, and authigenic illite. The clay fraction from nonaltered limestone of...contains an average illite-chlorite ratio of 70/30 with subsidiary interstratified illite/smectite. In the...in the alteration center (usually skarn) to an illite zone in the unaltered rocks. Proximal to distal...kaolinite and smectite, kaolinite, and authigenic illite; at Reboul (Fig. 7)—Mg chlorite, corrensite (not...authigenic illite; and at MidPatapédia—Mg chlorite, corrensite, smectite, and authigenic illite. The zonation |  | Yang, Meijun, Liang, Xiaoliang, Ma, Lingya, Huang, Jian, He, Hongping, Zhu, Jianxi (2019) Adsorption of REEs on kaolinite and halloysite: A link to the REE distribution on clays in the weathering crust of granite. Chemical Geology, 525. 210-217 doi:10.1016/j.chemgeo.2019.07.024 | Journal (article/letter/editorial) | | NU (Dardenne et al., 2002) and redox reactions (Bau and Koschinsky, 2009). Thus, the MA fractionation...2:1 clay minerals, D e.g., montmorillonite and illite with both permanent and variable pH-dependent ...points of zero charge (pHpzc) of AC kaolinite, illite, and montmorillonite are < 3.7, ~2.5, and 7-9,...4-7 in most natural environments, kaolinite and illite are capable of surface complexation of REEs (Kulik...twins” with identical charge and similar ionic radii (Bau, CE 1999). However, they displayed fractionation |  | Eslami, Alireza, Ghaderi, Majid, Rajendran, Sankaran, Pour, Amin Beiranvand, Hashim, Mazlan (2015) Integration of ASTER and landsat TM remote sensing data for chromite prospecting and lithological mapping in Neyriz ophiolite zone, south Iran. Resource Geology, 65 (4) 375-388 doi:10.1111/rge.12076 | Journal (article/letter/editorial) | | Universiti Teknologi Malaysia (UTM), 81310 UTM Skudai, Johor Bahru, Malaysia Abstract Chromite deposits...alteration minerals containing OH and CO3 groups. Illite/muscovite (sericite) has an intense Al-OH absorption...We are really thankful to University Technology Malaysia (UTM) for supporting this investigation using...environments: a case study from Central Belt, Peninsular Malaysia. Inter. J. Image. Data Fusion., 6, 170–188. Pour...JERS-1 SAR data: a case study from Bau gold field, Sarawak, Malaysia. Arabian.J. Geosci., 7, 2393–2406 |  | | Report (issue) | | few recognized deposits in Indonesia, Iran, and Malaysia. Three new grade and tonnage models for sediment-hosted...the western United States, Indonesia, Iran, and Malaysia, with median tonnage and grade of 7.1 Mt and 2...INDS Iran IRAN Country State or Province Malaysia MLYA United States Idaho USID United States...deposits have been discovered in Indonesia, Iran, and Malaysia, most deposits are located in the United States...the United States (87), and deposits in Iran, Malaysia, and Indonesia are of the Carlin subtype. Activity |  | | Journal (article/letter/editorial) | | b). The phyllic zone, which is characterized by illite/muscovite (sericite) minerals, has an intense Al–OH...mapping using PALSAR data in the Bau gold mining district, Sarawak, Malaysia. Adv. Space Res., 54, 644–654...PALSAR data in the Central Gold Belt, Peninsular Malaysia. Ore Geol. Rev., 64, 13–22. Pour, B. A. and Hashim...environments: a case study from Central Belt, Peninsular Malaysia. Int. J. Image Data Fusion, 6, 170–188. Pour,...zone using PALSAR remote sensing data, Peninsular Malaysia: implications for sediment-hosted orogenic gold |  | Takodjou Wambo, Jonas Didero, Pour, Amin Beiranvand, Ganno, Sylvestre, Asimow, Paul D., Zoheir, Basem, Salles, Rodrigo dos Reis, Nzenti, Jean Paul, Pradhan, Biswajeet, Muslim, Aidy M. (2020) Identifying high potential zones of gold mineralization in a sub-tropical region using Landsat-8 and ASTER remote sensing data: A case study of the Ngoura-Colomines goldfield, eastern Cameroon. Ore Geology Reviews, 122. 103530pp. doi:10.1016/j.oregeorev.2020.103530 | Journal (article/letter/editorial) | | (INOS), Universiti Malaysia Terengganu (UMT), 21030 Kuala Nerus, Terengganu, Malaysia 3Division of Geological...characterized by silicification, hematization, muscovite-illite formation (sericitization), and pyritization (Suh...characteristics, including muscovite, montmorillonite, and illite; the present analysis does not clearly distinguish...Mg-OH bending mode. Chlorite, epidote, biotite, and illite show distinctive absorption features at around...Oceanography and Environment (INOS), Universiti Malaysia Terengganu (UMT) for providing facilities during |  | Och, Lawrence M., Müller, Beat, Wichser, Adrian, Ulrich, Andrea, Vologina, Elena G., Sturm, Michael (2014) Rare earth elements in the sediments of Lake Baikal. Chemical Geology, 376. 61-75 doi:10.1016/j.chemgeo.2014.03.018 | Journal (article/letter/editorial) | | (McLennan, 1989; Sholkovitz et al., 1999; Piper and Bau, 2013). The REEs are composed of the 15 metals of...obtain a smooth curve from La and Lu (e.g. Piper and Bau, 2013). For the present study, we used the Post-Archean...result in comparable values (Dubinin, 2004; Piper and Bau, 2013). In addition, and in particular for the study...high temperature (see text below; Sverjensky, 1984; Bau, 1991). The fractionation of Ce from the other REE...oxidation of Mn(II) to Mn(IV) (Moffett, 1990, 1994; Bau, 1999). Accordingly, Ce(IV) is less soluble than |  | | Journal (article/letter/editorial) | | silicate minerals, including kaolinite, sericite, illite, quartz, Received 12 January 2016. Revised 30...et al., 2013) in which sericite (muscovite) and illite are used as indicators of phyllic alteration, and...relies on the division of a single spectral band by another one. Consequently, the division determines the...using satellite remote sensing data: Bau goldfield, Sarawak, Malaysia. Ore Geol. Rev., 54, 181–196. Bennett |  | | Journal (article/letter/editorial) | | phenocrysts are replaced by granular adularia with illite + sericite _+kaolinite or by single crystals of...Granodiorite, altered to a mixture of quartz and illite (4 km northeast of the Wingfield shaft), also has...alteration assemblages that include kaolinite, illite, sericite, jarosite and alunite, and with very...of quartz and illite, and feldspar phenocrysts are generally completely replaced by illite +_calcite, but...unaltered. Mafic minerals are replaced by sericite + illite +-calcite +-rutile. Sooty remobilized carbon is |  | | Journal (article/letter/editorial) | | Chemical and mineralogical characterisation of illite–smectite: Implications for episodic tectonism and...understood thermal and tectonic evolution. Authigenic illite was sampled from two prominent features of the...Late Triassic. Integrated analyses of authigenic illite provide evidence for three periods of fluid flow...of authigenic phases, including illite. Due to its composition, illite can be used for a number of geochronological...et al., 2014). High magnification microscopy of illite may reveal paragenetic and morphological data pertinent |  | Wei, Wei, Ling, Sixiang, Wu, Xiyong, Li, Xiaoning, Liao, Xin (2021) Investigations on mineralogy and geochemistry of a black shale profile on the northern Yangtze platform, China: Weathering fate of rare earth elements and yttrium (REY) and its implications. Applied Geochemistry, 126. 104897pp. doi:10.1016/j.apgeochem.2021.104897 | Journal (article/letter/editorial) | | mica, calcite and pyrite; secondary products are illite, kaolinite, chlorite and illitesmectite mixed layers...bedrock sample (7.8 wt% for CKP-39; Table S1). Illite and illite-smectite mixed layers were measured in all...minerals can be involved in the generation of illite, illite-smectite mixed layer and chlorite in our studied...affinity to the tetrad effect (Masuda et al., 1987; Bau, 1996; Irber, 1999; Feng, 2010; Lee et al., 2018;...Charge-and-Radius-Con trolled geochemical systems (Bau, 1996). However, Y–Ho fractionation can occur in |  | Uysal, I. Tonguç, Gasparon, Massimo, Bolhar, Robert, Zhao, Jian-xin, Feng, Yue-xing, Jones, Greg (2011) Trace element composition of near-surface silica deposits—A powerful tool for detecting hydrothermal mineral and energy resources. Chemical Geology, 280 (1) 154-169 doi:10.1016/j.chemgeo.2010.11.005 | Journal (article/letter/editorial) | | 309 mine wells and core samples (m) Lithology Illite crystallinity (Δ2θ°) Associated clay minerals...kaolinite THRCD894 98.5 123.75 124.8 285 318 Illite vein Silicified tuffaceous mudstone Silicified sandstone...Kaolinite-chlorite Kaolinite THRCD 905 379.9 Illite vein 0.42 Trace THRCD 908 84.2 102 406.27 Silicified...Silicified breccia Silicified breccia Illite vein 0.41 0.48 0.9 Kaolinite Kaolinite N/A Whole rock outcrop...and plagioclase-bearing rock No illite 0.7 No illite Trace illite 0.70 Chlorite Kaolinite Chlorite |  | Hecht, L., Thuro, K., Plinninger, R., Cuney, M. (1999) Mineralogical and geochemical characteristics of hydrothermal alteration and episyenitization in the Königshain granites, northern Bohemian Massif, Germany. International Journal of Earth Sciences, 88 (2) 236-252 doi:10.1007/s005310050262 | Journal (article/letter/editorial) | | tion of feldspars and vug-filling chlorite and illite (corresponds to sample 97–15); f episyenite with...and vugfilling quartz, white-mica, chlorite, and illite (synthesis of sample 97–10 and 97–14). kf K-feldspar;...minerals White mica 2 (phengite) Chlorite 2 Chlorite 3 Illite Pyrite Quartz 97–11 97–12 97–14 97–15 a 97–23...show a nearly complete alteration of feldspars to illite and probably other clay minerals. Relics of unaltered...contains inclusions of vugfilling chlorite and illite and is therefore one of the latest vug-filling |  | Li, Fei, Webb, Gregory E., Algeo, Thomas J., Kershaw, Stephen, Lu, Chaojin, Oehlert, Amanda M., Gong, Qiaolin, Pourmand, Ali, Tan, Xiucheng (2019) Modern carbonate ooids preserve ambient aqueous REE signatures. Chemical Geology, 509. 163-177 doi:10.1016/j.chemgeo.2019.01.015 | Journal (article/letter/editorial) | | University of Miami, Miami, FL 33149, U.S.A. i Division of Key Laboratory of Carbonate Reservoirs of CNPC...characteristics and behaviors to seawater (Möller and Bau, 1993; Shiller, 2002). Modern seawater REE+Y concentrations...order it on the basis of effective ionic radius (Bau and Dulski, 1996). The ratios of RI (Pr/Yb)SN,...calcite, 17 % quartz, 9 % orthoclase, NU and 6 % illite (volume estimates). Original elemental data (including...fractions (PFC), which consist of quartz, feldspar and illite, have REE+Y characteristics similar to those of |  | Çoban, Fazlı, Ece, Ö. Işık, Yavuz, Orhan, Özdamar, Şenel (2002) Petrogenesis of volcanic rocks, and clay mineralogy and genesis of underclays, Şile Region, İstanbul, Turkey. Neues Jahrbuch für Mineralogie - Abhandlungen, 178 (1) 1-25 doi:10.1127/0077-7757/2002/0178-0001 | Journal (article/letter/editorial) | | layers consist of disordered kaolinite, illite, mixed-layer illite – smectite, smectite, gibbsite, quartz...The clay minerals consist of kaolinite, illite, mixed-layer illite – smectite and minor amount of smectite...detected in all samples and Illite in the bottom layers of the underclay horizon. Illite shows the Md polytype...heated to 500 ƒC, and may indicate the presence of illite – smectite. The most abundant clay mineral in all...MAT-2 MA-1 MA-2 F-2 F-3 F-4 Kaolinite + Quartz + Illite + Smectite Kaolinite + Smectite + Gibbsite + Quartz |  | | Journal (article/letter/editorial) | | detect hydrothermal alteration zones in Bau goldfield, Sarawak, Malaysia. IDL logical operator algorithms are...form of muscovite (Hurlbut and Klein, 1977)) and illite have a distinct Al-OH spectral absorption feature...using satellite remote sensing data: Bau goldfield, Sarawak, Malaysia. Ore Geology Reviews. 23, 181-196 |
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