海量图书期刊资源,随时随地畅享阅读乐趣
VITAMIN D AND THE TEETHEkwueme, Barth N. · The Lancet · 1936
Single zircon evaporation ages from the Oban Massif, southeastern NigeriaBarth N. Ekwueme; Alfred Kröner · 1998
Mineralization of pegmatites in parts of the Oban Massif, Southeastern Nigeria: A preliminary analysisKingsley A. Ero; Barth N. Ekwueme · 2009
Rb-Sr ages and petrologic features of Precambrian rocks from the Oban massif, southeastern NigeriaEkwueme, Barth N. · 1990
Single zircon evaporation ages: Evidence for the Mesoproterozoic crust in the southeastern Nigerian basement complexEkere E. Ukwang; Barth N. Ekwueme; Alfred Kröner · 2012
Preliminary review of the geology of the hornblende biotite gneisses of Obudu Plateau Southeastern NigeriaAgbi, Ifeoma; Ekwueme, Barth N. · Global Journal of Geological Sciences · 2019
RbSr age of Pan-African migmatites in the Oban massif of southeastern NigeriaEkwueme, Barth N. · Journal of African Earth Sciences (and the Middle East) · 1992
The Archaean geology of Sierra LeoneWilliams, H.R. · Precambrian Research · 1978
An overview of charnockiteNewton, Robert C. · Precambrian Research · 1992
Proterozoic ferroan feldspathic magmatismFrost, Carol D.; Frost, B. Ronald · Precambrian Research · 2013
The earliest atmosphere of the EarthWalker, James C.G. · Precambrian Research · 1982
Metallogeny of the Precambrian in IranSamani, Bahram A. · Precambrian Research · 1988
Evolution of Precambrian REE mineralizationTu, Guangzhi; Zhao, Zhenhua; Qiu, Yuzhuo · Precambrian Research · 1985
PrefaceBeresford, Steve; Tyler, Ian; Smithies, Hugh · Precambrian Research · 2013
Editorial BoardHadziselimovic, Faruk · Precambrian Research · 1983