... clay sediments. Samples of humus and B-horizon soil were collected at 25–50-m intervals over traverses with the total lengths of 562 m over the Whiskey kimberlite and 740 m over the Yankee kimberlite pipe. B-horizon soil samples, sieved to <80 mesh and dried at 60 °C, have high carbonate contents...

... were collected along transects that typically extended at least 200 m beyond the margins of Yankee, Zulu, and Golf kimberlites. Locations of upwelling groundwater usually occur at or near kimberlite margins based on hydrogeological measurements and variations in peat groundwater geochemical parameters...

...-quartz vein stockworks, or brecciated gold-quartz veins, or a gold-rich breccia pipe. This proposed mineralized target, the “Columbine target,” might explain the quartz fragments with coarse gold reported in the placer channel deposits under glacial cover near the Yankee Mine ( Figure 4...

... of the chamber. The CO 2 and water vapour mixture would then be compressed. Most of the water vapour would condense and be recycled. The CO 2 would be dried and further compressed until it liquefied and then would be piped to a nearby storage site. Lackner projects that the price of each unit would be about...

....   My duties were split between analysis of gold alloys and kimberlitic mineral surveys, the latter in an attempt to identify geochemical correlations with diamondiferous pipes that could be used as an exploration tool. I recall some excitement when knorringitic garnet appeared to strongly correlate...

... S. B. Castor (pers. commun., 2011) 21. DeLamar (Silver City) 1 , 2 Halsor et al. (1988) ; Unger (2008) ; Saunders et al. (2008) 22. Yankee Fork (Challis) 1 Allen and Hahn (1994) 23. Cannon (Wenatchee) 1 Guilbert (1963) ; Power-Fardy (2009) 24. Republic 1 , 2...

... was downgraded to a member of the McNaughton Formation, with its upper boundary at the base of the first sandstone lacking feldspar grains ( Lickorish and Simony, 1995 ). Young (1979) correlated the McNaughton Formation westward across the Rocky Mountain Trench with the equivalent upper Yankee Belle, Yanks...

..., and 5 tons of gold at Breccia Pipes Wutanshan; however unofficial estimates of gold production are considerably greater. Orebodies are mainly gold-copper veins, gold FIGURE 1: Location ofthe gold-copper deposits ofthe Chinkuashih veins, and gold-copper breccia pipes. Ore minerals are native gold...

... volcanics was emphasized by fluids. If a mineral is precipitated from solution, the stable isotopic Criss et al. 0985) in the Yankee Fork District of Idaho, where they documented a correlation between anomalously low whole rock ratio of the mineral is a function of the a18Q value of the fluid and a180...

...? Anchor Quartz-mica-topaz greisen sheets 8.8 Mt at 0.18% Sn Quartz-muscovite-cassiterite-topaz, fluorite, sulfides Lottah granite Lottah granite Rex Hill Quartz-sulfide-greisen pipe 3,480 t Sn Greisen core: quartz-cassiterite-fluorite ± galena, sphalerite Henbury granite Gipps Creek granite...

... baddeleyite (ZrO 2 ), un autre oxyde comme standard primaire ( Marcoux et al. , 2021 ). Afin de vérifier la pertinence de cette approche, la cassitérite Yankee (246,48 ± 0,51 Ma : Carr et al. , 2020 ) a été analysée comme standard secondaire. Nous avons utilisé les conditions analytiques suivantes : 50 μm...

... . 1 [ 121 46.12 451 YANKEE SHOT POINT (HEALYI19633 SOT 36 56.24 121 3 ~ . 1 7 MUR2 37 43.67 121 4 8 . 0 3 225 SOB 36 55.36 121 3 8 . 3 5 393 MUR3 37 4 3 . 3 0 12[ 4 7 . 7 4 188 SITE LATIN) LONG(HI ELEVIH) TaT. S09 36 58.85 121 47.12 215 HENZ 37 36.57 121 41.58 170 $10 37 1.73 12[ 50°55 353 YANK 37...

... 70±30 2300±700 20±9 Vapor LowW9 1,3 150±40 1600 1±0.5 1.2±0.9 0.3±0.4 0.2±0.1 1400±900 440±430 300±300 62±60 9 40±6 77±24 Brine YANKEE 1,3 528 28 1500±100 2400±200 7.2±0.5 3.5±0.4 1.4±0.2 4±1 600±200 3200±800 180±30 1400±300 100±60 3100±400 2600±600 6±2.3...

... of ore minerals in these deposits are between −2 and −10‰. The most negative values lie toward the top of the mineralized monzonite pipes, with a transition to near-zero values with distance upward or outward from the pipe. The conclusion from these studies is that sulfur isotope compositions may be used...

..., costumes, arrows, arrowheads, tomahawks, stone pipes, and tools, and “ Turtle shells held together and used for music ” by the Cherokees and given in 1796 by the U. S. Agent for the Cherokees. There were also harpoons, a glass model of a frigate, “ curious objects ” from China and Peru, “ Indian articles...

... seasoned exploration geologists in the Great Basin breccia pipe. The Fisher Mountain deposit is the smallest of the five (programs must be doing better elsewhere and over a hundred and represents sulfides accumulated along dilational portions of a others at the mine site-all this in an "austerity program...

... fragmental and hydrothermally altered Hydrothermal of Adelaide, near Port Augusta. alteration is extrem e, and the m ineral assemblage produced has some similarities to that seen in high level H. Rutter began studies of the regional geophysics in 1974 and breccia pipes such as those in Chile." (Hudson, 1975...

... to 39 Ma old Cave Peak prospect in northwestern Texas hosts three distinct molybdenum orebodies centered on a porphyry plug within a breccia pipe ( Sharp, 1979 ). Several intrusive phases were distinguished based on surface mapping and extensive drilling. The first intrusive event is represented...

... different uranium deposits. ‘Polars’ and ‘Aromatics’ are more oxidized than ‘Saturates’. Pipes- breccia pipes, Grand Canyon Area, Arizona, Lodeve- Lodeve, France. Arlit- Arlit-Akouta, Niger. Utah- Temple Mountain, Utah. Vosges- Vosges, France. Cerilly- black shales, Cerilly, France. Type II and III refer...

... in that area. investigations by BHP-Utah in the Easton-Pacific area; Billiton Minerals in the Garrison mine, Lucas Bar and Yankee vein areas; HISTORY Hanover Gold in the Kearsarge area; Kennecott in the Kearsarge, Mining in the Virginia City District began with the discovery of South Bachelor and Lucas vein...