...DENNIS J. GEIST; ALEXANDER R. McBIRNEY; ROBERT A. DUNCAN Abstract Volcanism became emergent on San Cristobal Island 2.3 m.y. B.P. in the eruption of floods of alkaline basalt. Volcanism then coalesced in a central shield volcano, which erupted continually until 0.6 m.y. B.P. At 0.9 m.y. B.P...

..., Santa Isabel, Florida Group, Guadalcanal, and San Cristobal (Thompson, 1965), and all these ultramafites lie within the Central province of Coleman (1966). Diapiric masses. of ultramafic rocks have been described in the New Hebrides (Mallick and Neef, 1974) and in the Solomons (Stanton, 1961; Stanton...

... are coarsest and of highest calcium carbonate content in a strait that is swept by tidal currents. Adjoining bands of progressively finer sediment result from lower velocities of the water at both ends of the strait. At one end of San Cristobal Bay the sediments are coarse and of high calcium carbonate content...

... as 100% SiO 2 . The purpose of this note is to point out that the original tridymite from Cerro San Cristobal, Pachuca, Mexico, also contains Al, Na, and other elements in solid solution, and that this is probably the case with all natural tridymites. Under these circumstances the name christensenite...

... groups (symbiont-bearing, opportunistic, heterotrophic) with highest diversity at Baltra and Darwin islands, which also contained the highest percentages of miliolid and rotaliid taxa. In contrast, the lowest diversity was found at Floreana and San Cristóbal islands, with the highest rotaliid and lowest...

...H. D. Hedberg A particularly interesting feature connected with the Congress was the trip over the Trans-Andean highway from Caracas to San Cristobal by means of which the majority of those attending the Congress arrived at the meeting place. This 685-mile trip over an excellent mountain road...

... large recently discovered silver-zinc deposit at San Cristobal, the Pulacayo polymetallic district, and the giant Potosí silver-tin-base metal deposit. Lead isotope ratios of ores and igneous rocks from the San Cristobal deposit and from Paleozoic and Cretaceous sedimentary rocks are compared...

... terraces onshore in the vicinity of Santo Domingo indicate Tertiary uplift of the island. The bathymetric chart of Matthews and Holcombe (1976) indicates that San Pedro Basin, which is bounded on three sides by the landmass of Hispaniola, opens to the south through a broad gap in a bathymetric...

.... 2017 ). In contrast, Wedderburn contains edscottite with minor cohenite but lacks haxonite. Two carbide-containing members of the IAB complex, Freda (sLH subgroup) and San Cristobal, resemble Wedderburn in having high bulk Ni (23–25 wt%) and Co (0.6 wt%) ( Wasson and Kallemeyn 2002 ). All three...

..., 162, 247, 317 315, 316, 317 San Benito County, California 66 Pajaro Valley, California 315 San Bernardino, California 63, 64, 155, 316 Palm Springs, California . . . . . . . . . . . . 63, 65 San Bernardino County, California 155 Pato Verde Valley, California 313 San Cristobal Island, Solomon Islands...

... in the same region was recorded on July 9 at 00 h 03 m028, with provisional epicenter 10° S, 1610 E. The J.S.A. gives the time of the main shock as 16h 46TM 578 and tentative epicenter 1177 S, 16470 E. The July 7 loca- tions are in the Coral Sea, east or southeast of San Cristobal Island, Solomon Islands...

..., Sierra Madre, and White limestone. The Upper Cretaceous, consisting of sandstone, marl, impure limestone, and dolomite, was said to be included in Ver Wiebe’s San Cristóbal limestone, and it was implied that all Müllerried’s fossil horizons lay within this formation. 2 Geological Survey...

... of Bougainville (exclusive of Buka) in the northwest to the island of Makira in the southeast. Its northeastern boundary is the Kia-Kaipito-Korigole fault zone (see Malaita assemblage), and in the southwest, the assemblage is bound by the New Britain and San Cristobal forearc assemblages. The Solomon assemblage...

... tremors felt in Honiara, about 01:30; 04:26:20; 06:13:15; 16:36:49. Tremors con- tinuing to be felt in eastern Guadalcanal and western San Cristobal all day 15th and 16th June (Honiara register). "The first tremor was felt at 11:30 on 15th June and continued for some ten minutes, after which the ship...

... of September 3. Solomon Islands region, September 3, 1950The Survey reports an earth- quake at 04 h 05m 15~, G.C.T., with preliminary epicenter 11° S, 162~ ° E, which is in the Coral Sea east of San Cristobal Island, Solomon Islands. Rome, Italy, September 5, 1950News reports from Rome state that more than...

... 24 Redwood City, California 173 St. Helier, Island of Jersey 86 St. Mary's, Missouri 174 Salt Lake City, Utah 32 San Bernardino, California 30, 134, 177 San Cristobal, Mexico 34 San Francisco, California 135, 174 San Francisco Bay Area, California 134 San Jose, California 24 San Luis Province...