...Figure 8. The spatial variation of the coastline, the outlet of the Thu Bon River. ...

... Bon Ami and Grande Grevè Formations. Mass spectrometry and Gas-Solid-Chromatography analyses, undertaken on an oil sample recovered from the overlying Lower Devonian York River Formation, and on two source-rock extracts from the Grande Grevè and Cap Bon Ami Formations, show that the oil is relatively...

... the boundary between the St. Alban and Cape Bon Ami by raising it to the top of Logan’s Member 3, as he was unable to separate Members 2 and 3 in the field. McGerrigle (1950 , p. 55) also included the Griffon Cove River beds of Kindle (1938) in his expanded St. Alban Formation. In his discussion, however...

... the succession is: Griffon Cove River Formation composed predominantly of heterogeneous terrigenous strata, Sayabec limestone, Roncelles very calcareous mudstone, St. Léon siltstone, and Cap Bon Ami Formation. The Sayabec limestone forms a convenient datum, and both it and the St. Léon Formation are continuous...

.... 2 ). Both the Thu Bon River and the Tra Khuc River in central Vietnam drain from the Kontum Massif of the eastern Indochina block ( Fig. 2 ). The Thu Bon River begins at Ngoc Linh Mountain ( Fig. 1 ), which is a high mountain of the Annamite Range in Vietnam, and flows almost 200 km to the South...

... reserved 1952 American Association of Petroleum Geologists A major part of the surface of Africa consists of pre-Cambrian igneous and metamorphic basement rocks or pre-Cambrian and earliest Paleozoic non-fossiliferous sediments (darkest pattern, Fig. 1 ) and is thus almost entirely lacking...

... that the Lac Croche Formation is of latest Silurian age (“Skalian”). Cap Bon Ami Formation .—The Cap Bon Ami in the region studied consists of thin-bedded dark gray calcareous mudstone and argillaceous limestone. Fossils collected at Mistigougoueche River (sec. H, Fig. 4 ), 500 ft above the base...

... the cooperation of the Belgian Congo authorities so that the survey can be extended across the Semliki River to the northwestern wall of the Rift, thus giving a complete cross-sectional picture. As had been anticipated, the crystalline rocks which form the floor of the Rift Valley are too deep to be reached...

... Unit Calcite (%) Quartz (%) K-feldspar (%) Plagioclase (%) Muscovite (%) Chlorite (%) Hematite (%) 1 Cal-LC 84.83 13.34 1.83 x x x x 2 Cal-LC 89.17 8.81 0.96 x x x x 3* Cal-LC 90.91 4 Cal-Bon 95.47 3.46 x 0.19 x x 0.19 5 Cal-Bon 98.12 0.16 x...

...Paul D. Bons; Tobias Fusswinkel; Enrique Gomez-Rivas; Gregor Markl; Thomas Wagner; Benjamin Walter Abstract Unconformity-related hydrothermal ore deposits typically form by mixing of hot, deep, rock-buffered basement brines and cooler fluids derived from the surface or overlying sediments. Current...

... dykes that feed plutons and magma chambers. Marchildon & Brown ( 2003 ) used outcrops of networks of granitic dykes as evidence for magma transport through hydrofracture networks in support of the ‘rivulets-feeding-rivers’ model. Bons et al . ( 2009 ), however, argued that these networks...

... G. J. J. On weathering and denudation of humic tropical interfluves and their triple planation surfaces Geol Mijnbouw 1983 62 383 8 Aleva G. J. J. Bon E. H. Nossin J. J. Sluiter W. J. A contribution to the geology of part of the Indonesian tin belt: the area between...

... Burk (1964 , Fig. 3) and McGerrigle (1950 , Fig. 3), and section 6 from Burk, and Cumming (1959b , Fig. 3). If interpretation A or B is correct, the basal 800 feet of Grande Greve strata in the Madeleine River area pass eastward by successive facies changes through the Cape Bon Ami into the St...

... the provenance, maximum depositional ages, and depositional environment of the southwestern margin of the Indochina terrane through the late Paleozoic to early Mesozoic. The key lithological units, the Sap Bon, Pang Asok, and Nong Pong Formations, are part of the Saraburi Group and have detrital age spectra...

... pattern, Fig. 1 ) and is thus almost entirely lacking in petroleum possibilities. Over much of the remainder of Africa, also, petroleum prospects are poor since the section is either (1) made up of sediments of dominantly non-marine origin or (2) is covered by extensive lava flows which effectively mask...

...., 2001 ; Means and Li, 2001 ; Barker et al., 2006; Bons et al., 2012 ). Indeed, several experiments have demonstrated the great importance of the force of crystallization in the beef vein opening ( Bons and Jessell, 1997 ; Hilgers et al., 2001 ; Nollet et al., 2005 , 2009 ) Thus, the tectonic stress...