O

ÔBA, N. and MIYAHISA, M., 1977. Relations between chemical composition of granitic rocks and metallization in the Outer Zone of southwest Japan. GSM Bull. 9:67-74 [3 illus., 2 tab., 18 ref.]

ÔBA, N., TOMITA, K., YAMAMOTO, M., ISTIDJAB, M., SUDRADJAT, A and SUHANDA, T., 1986. Geological significance of granitic fragments found from pumice flow of 1883 eruption at the Krakatau Group, Indonesia [abstract]. In: Fifth Regional Congress on Geology, Mineral and Energy Resources of Southeast Asia, GEOSEA V, Kuala Lumpur, 9-13 Apr. 1984, Abstracts of Papers, p. 23.

OGAWA, N. see (Okitsu, F. & Ogawa, N., 1990)

OH, K.W.P., YEAP, E.B. and HOSKING, K.F.G., 1975. The behavior of secondary lead species when subjected to the tinning test for cassiterite. Warta Geologi 1(1):4-8 [4 ref]

OH, K.W.P., YEAP, E.B. and HOSKING, K.F.G., 1977. The behavior of secondary lead species when subjected to the tinning test for cassiterite. GSM Bull. 8:137-140 [4 ref.]

OIKAWA, N. and GIR, R., 1990. A new concept in borehole seismic measurement and applications [abstract]. In: Petroleum Geology Seminar, Kuala Lumpur, 27 & 28 Nov. 1990, Warta Geologi 16(6):272.

OKITSU, F. and OGAWA, N., 1990. Formation evaluation by Quartz Gauge FMT tool [abstract]. Petroleum Geology Seminar, Kuala Lumpur, 27 & 28 Nov. 1990, Warta Geologi 16(6):262.

OLOFIN, E.A. and MORGAN, R.P.C., 1971. Mass movement in the University of Malaysia Campus, January 1971. GSM Newsletter 29:1-4 [1 illus., 1 ref.]

OLOFSSON, S., 1982. Emulsion explosives in rock excavation [abstract]. In: Symposium on Rock as Construction Materials, Kuala Lumpur, 30 Nov. & 1 Dec. 1982, Warta Geologi 8(6):282-283.

OLSON, H.J. and DEYMONAZ, J.E., 1992. Deep slim hole, diamond core drilling program proves effective for geothermal assessment in Hawaii [abstract]. In: Symposium on Tectonic Framework and Energy Resources of the Western Margin of the Pacific Basin, Kuala Lumpur, 29 Nov.-2 Dec., Warta Geologi 18(6):283.

OLSON, H.J. and DEYMONAZ, J.E., 1993. Deep slim hole, diamond core drilling program proves effective for geothermal assessment in Hawaii. GSM Bull. 33:387-397 [10 illus., 6 ref.]

ONG, C.Y., TAN BOON KONG, IBRAHIM KOMOO and ABDUL GHANI RAFEK, 1990. Sifat kejuruteraan bahan tanah granit, lebuhraya Ipoh-Changkat Jering, Perak Darul Ridzuan (The engineering properties of granitic soil material, Ipoh-Changkat Jering expressway, Perak Darul Ridzuan). [abstract]. In: GSM Annual Geological Conference, Ipoh, Perak, 7 & 8 May 1990, Warta Geologi 16(3):122.

ONG, C.Y., 1991. Sifat kejuruteraan bahan tanah granit, lebuhraya Ipoh-Changkat Jering, Perak Darul Ridzuan (The engineering properties of granitic soil material, Ipoh-Changkat Jering expressway, Perak Darul Ridzuan). GSM Bull. 29:101-155 [11 illus, 1 tab, 11 ref]

ONG, G.B. and STAUFFER, P.H., 1982. A large prehistoric landslide near Raub, Pahang, Peninsular Malaysia. Warta Geologi 8(6):253-257 [2 illus., 3 ref.]

ONG, G.B. see also (Haile, N.S. et al., 1977)

ONG, H.T. and NG, T.S., 1984. Exploration history of Malong discovery [abstract]. In: Petroleum Geology Seminar, Kuala Lumpur, 3 & 4 Dec. 1984, Warta Geologi 10(6):265.

ONG, W.S., 1978. Preliminary note on the dolomitisation of the limestone in the Simpang Pulai area, Kinta District, Perak. Warta Geologi 4(4):111-114 [1 illus., 2 tab., 2 ref.]

ONG, Y.H. and AW, P.C., 1980. Some aspects of the stratigraphy and structure of the upper part of Machinchang Formation and the lower part of Setul Formation [abstract]. In: Geology of North West Peninsular Malaysia Seminar, Kuala Lumpur, 25 Apr. 1980, Warta Geologi 6(2):32-33.

OO, N. see (Win, H. & Oo, N., 1984)

OOI, C.M. see [Idris, M.B. & Ooi, C.M., 1992]

OOI, S.T. see (Comet, P.A. et al., 1988, 1989)

OTE, L.M. see (Tamesis, E.V. et al., 1973)

OTHMAN YAACOB see (Wan Sulaiman W. Harun et al., 1982)