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1Reefs in the Early Paleozoic Taebaek Group,Korea:A Review显示文摘Various early Paleozoic(Cambrian Series 3-Middle Ordovician)reefs are found in the Taebaek Group,eastern Korea,located in the eastern margin of the Sino-Korean Block.They occur in every carbonate-dominant lithostratigraphic unit of the group,but their morphology and composition differ markedly.The Daegi Formation(middle Cambrian:Cambrian Series 3)contains siliceous sponge-Epiphyton reefs formed in a shallow subtidal environment,which is one of the earliest metazoan-bearing microbial reefs after the archaeocyath extinction.The Hwajeol Formation(upper Cambrian:Furongian)encloses sporadic dendrolites consisting of Angulocellularia,which developed in a relatively deep subtidal environment,representing a rare deeper water example.The onset of the Ordovician radiation resulted in the formation of microbialite-Archaeoscyphia-calathiid patch reefs in shallow subtidal deposits of the Lower Ordovician Dumugol Formation.Subsequent late Early Ordovician relative sea-level fall established extensive peritidal environments,forming microbial mats and stromatolites of the Lower-Middle Ordovician Makgol Formation.Ensuing Ordovician radiation resulted in one of the earliest metazoan skeletal reefs of the Middle Ordovician Duwibong Formation,constructed by stromatoporoid Cystostroma and bryozoan Nicholsonella,and developed around shallow shoals.These reefs reflect ongoing evolution and sea-level change during the early Paleozoic,and exemplify a rare glimpse of peri-Gondwanan records of reef evolution,which warrant detailed investigations and comparison with their counterparts in other regions.LEE Jeong-Hyun HONG Jongsun WOO Jusun OH Jae-Ryong LEE Dong-Jin CHOH Suk-Joo 2016Acta Geologica Sinica(English Edition)2016,90,1:2
2Distribution of Chancelloriids in a Middle Cambrian Carbonate Platform Deposit, Taebaek Group, Korea显示文摘The onset of the Cambrian witnessed the diversification of 'small shelly fossils(SSF)', which affected carbonate depositional system. One of the problematic SSF, chancelloriids, are common components of the early to middle Cambrian carbonate and shale, and their contributions toward Cambrian carbonates are not yet fully understood. This study assesses distribution patterns of chancelloriid sclerites in the Cambrian Series 3 Daegi Formation based on microfacies analysis and discusses their sedimentologic implications. In the lower part of the formation, partially articulated chancelloriid sclerites occur mainly in bioclastic packstone and grainstone facies, with isolated sclerite rays in nodular packstone to grainstone facies. In the middle part of the formation, chancelloriid fragments occur only sporadically in bioclastic wackestone to packstone, bioclastic grainstone and oolitic packstone to grainstone facies, whereas boundstone facies are nearly devoid of their fragments. There are no chancelloriid fragments in the upper part of the formation, which consists of oolitic packstone to grainstone facies. Chancelloriids are interpreted to have primarily occupied platform margin shoal environments, shedding their sclerites to surrounding areas, and thus contributed as sediment producers. The distribution of Daegi chancelloriid sclerites is similar to other Cambrian examples, with the exception of common chancelloriids in Cambrian Series 2 reefs and their apparent near absence in the Daegi and other Cambrian Series 3 reefs. This disparity resulted from changes in the ecologic niche of chancelloriids after the end-Cambrian Series 2 reef crisis, coupled with an overall decline of chancelloriids in the middle Cambrian.HONG Jongsun CHOH Suk-Joo LEE Dong-Jin 2016Acta Geologica Sinica(English Edition)2016,90,3:2
3COMPARISON OF HEAVY METAL CONCENTRATIONS IN SURFACE SEDIMENT OF TANJUNG PIAI WETLAND WITH OTHER SITES RECEIVING ANTHROPOGENIC INPUTS ALONG THE SOUTHWESTERN COAST OF PENINSULAR MALAYSIA显示文摘S:Tanjung Piai wetland has now been proclaimed to be a wetland of international importance since 2003. Therefore, its heavy metal pollution status should be known and recorded. In this study, sediments in Tanjung Piai wetland were collected in 2002 and 2005 and were analysed for Cd, Cu, Ni, Pb and Zn. For comparison purpose, sediments were also collected for metal analysis from a known polluted site at Kg. Pasir Puteh, four jetties and a river. A comparison with the polluted sediment collected from Kg. Pasir Puteh and the established Sediment Quality Criteria showed that Tanjung Piai was not polluted with Cd, Cu, Ni, Pb and Zn. These background concentrations or baseline data of heavy metals in the sediment is important for future reference. Therefore, Tanjung Piai wetland is a suitable site for sanctuary and wetland conservation and it should be conserved for its pristine conditions in order to support its high biodiversity.Chee Kong Yap Mew Seong Choh Franklin Edward Berandah Ahmad Ismail Soon Guan Tan 2006湿地科学2006,4,1:2
4EPR study of Fe^3+ impurities in crystalline BiVO4显示文摘YEOM T CHOH S DU M 1996Phys RevB1996,53,:1
5Prominent ferroelastic domain walls in BiVO4 crystal 显示文摘LIM A CHOH S JANG M 1995JPhys Condens Mater1995,7,:1
6Prominent ferroelastic domain walls in BiVO4 crystal 显示文摘Lim AR Choh SH Jang MS 1995J Phys : Condens Matter1995,,7:1
7Rapid postnatal weight gain and visceral adiposity in adulthood:the Fels Longitudinal Study 显示文摘Demerath EW Reed D Choh AC 2009O- besity( Silver Spring)2009,17,11:1
8Platelet-activating factor induces lung inflammation and leak in rats : hydrogen peroxide production alongneutrophil lungendothelial cellinterfaces 显示文摘Lee Y M Hybertson B M ChoH G 2002Lab Clin Med2002,140,2:1
9Fabrication of TiB2/Al composites by combustion synthesis of Al-Ti-B system 显示文摘KWON Y J KOBASHI M CHOH T 2002Materials Transaction2002,43,11:1
10O- rigin-Destination Estimation Using Cellular Phone BSInformation 显示文摘Byeong-Seok YOO Seung-Pil KANG Kyungsoo CHOH 2005Journal of the Eastern Asia Society for Transportation Studies2005,,6:1
11Fabriiation and Mechanical Properties of in Situ Formed Carbide Particulate Aluminum Composites 显示文摘Nakata H Choh T Kane N 1995Journal of Materials Sciences1995,30,:1
12显示文摘Ho Nyung Lee Myoung Ho Lim Yong Tae Kim T S Kalkur Sung Ho Choh 1998Jpn J Appl Phys1998,37,:1
13A study on removal characteristics of heavy metals from aqueous solution by flyash显示文摘ChoH C Oh D Y Kim K 2005Journal of Hazardous Materials2005,127,13:1
14Time of flight diffraction measurement using laser ultrasound显示文摘Mihra T Otsuka Y ChoH 0,,:1
15显示文摘Lira A R Choh S H Jang M S 1995Phys: Condens Matter1995,7,37:1
16Retinalneovascularizationsecondarytoproliferativediabeticretinopathycharacterized byspectraldomainopticalcoherencetomography显示文摘ChoH AlwassiaAA RegiatieriCV etal 2013Retina2013,33,3:1
17A Totally Do-It-Yourself Library Without a Library Customer Service Desk= the Singapore Experience 显示文摘N L Choh 2003IFLA Journal2003,,29:1
18Genome-wide link age scan for quantitative trait Loci underlying normal var iation in heel hone ultrasound measures显示文摘Lee M Choh AC Williams KD 2012J Nutr Health Aging2012,16,1:1
19Registrationbasednonuniformmotiondeblurring显示文摘CHOS CHOH TAIYW etal 2012ComputerGraphicsForum2012,31,7:1
20Effectsofthesyntheticconditionsofpoly{carboxylate-g-(ethyleneglycol)methylether}onthedispersibilityincementpaste显示文摘ChoH Y SuhJM 2005CementandConcreteResearch2005,35,5:1
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