...Robert O. Fournier Abstract In the southwest part of the Liberty pit a large porphyry body exhibits a zonal alteration pattern related to fissures and pyrite-bearing veins. The outermost zone contains unaltered K-feldspar, kaolinite after plagioclase, and black biotite after hornblende...

...Robert O. Fournier Abstract Detailed mapping of the Liberty open-pit copper mine indicates that a monzonite porphyry complex was emplaced into a folded sedimentary sequence during active faulting in Cretaceous time. The upper portion of the intruded igneous material was the first to solidify...

...Robert O. Fournier Abstract Plagioclase is completely altered to montmorillonite in some portions of a hydrothermally altered porphyritic rock located in the Liberty Pit porphyry copper mine near Ely, Nevada. In these places the altered rock is easily crumbled in one's hand and perfect pseudomorphs...

...Vincent P. Gianella Abstract Vivianite was found during mining operations in the Liberty Pit of the Nevada Consolidated Company’s mine at Ruth, Nevada. The mineral was noted by Mr. Emmett Spencer, who called the writer’s attention to it during a visit to the property in June, 1937. The vivianite...

... (Llandovery) Manitoulin Formation. The paleokarst surfaces are characterized by small-scale pitting (Karren), an irregular profile displaying topography of a few centimetres, and an iron oxide crust. The highest parts of the Karren are covered by a thin, epilithic, microphyte carpet (algal and fungal?) within...

... zircon ages from metavolcanic rocks in the unit indicate prolonged magmatism between ca. 469–474 Ma and correlation with adjacent rocks of the more regionally extensive Casco Bay Group (CBG) in the Liberty–Orrington belt. New detrital zircon results from metasedimentary rocks in the EHG support...

... in technical execution and in the business case for supporting such. Examples of areas requiring extensive work include the following: oil fields and refineries, urban industrial sites, open pit mines (leach piles, tailings piles, etc.), and old mining areas. Of primary concern is the toxicity of these sites...

... of Energy's Hanford site in Washington, the method is used to identify significant lateral and vertical velocity heterogeneity associated with infilled waste pits. Using both the PSDM images and velocity models in interpretation, a paleochannel system that underlies the site and likely forms contaminant...

... boundary of eastern Laurentia occurring within the Bobcaygeon Formation (Holland and Patzkowsky, 1996 ). Because the fossiliferous horizons of the Bobcaygeon are largely restricted to the upper member of the formation, the crinoid material described here is Katian in age (Liberty, 1969 ; Brookfield...

... measurements from four terrestrial impact craters: Meteor Crater, Henbury 1 in Australia, and Odessa 1 and 2 in Texas. By plotting these data, he showed that small terrestrial shell pits, bomb craters, terrestrial impact craters, and lunar craters all clustered along a smooth logarithmic curve, “too startling...

... are becoming increasingly viable to mine. F igure 1 Schematic representation of supergene oxidation and enrichment processes for Cu. ( left ) Photo showing a supergene profile in the south pit of the Chino (Santa Rita) copper mine, New Mexico. There is a ferricrete channel in the center (deep red...

... and deformation along several fault systems throughout the region ( Fig. 1 ), including faults that splay off the subduction megathrust (e.g., Plafker, 1967 ; Bruhn et al., 2004 ; Haeussler et al., 2011 ; Liberty et al., 2013 ). Megathrust splay faults elsewhere in the world develop in accretionary prisms...

... geomorphic landscape, major rivers (flowing from NW to SE), and broad, high-order interfluve between rivers (typical of the S.E. U.S. Piedmont). Pit locations are clustered at the given scale and indicated by small black stars. GPS coordinates for each site are available in Table 1 . See also Cook ( 2019...

... Americans who fought for their liberty and built a country. To provide a tid-bit of the information, I quote a brief passage. “In former years it had been necessary for such establishments to send to England either the ore, (of no great value), or the unrefined copper. On this basis the dealer gained...

... and Yochelson, 1985, p. 88, fig. 3.2) . While longitudinal thickenings were obscure in most of Mason and Yochelson’s S. bicarinatus specimens, thickenings are apparent in most of the Meadville tubes. Small, black discs, 0.7 to 2.0 mm in diameter, with concentric circular depressions and central pit...

.... 3 ) with varying proportions of framework cobbles and matrix sand ( Barrash and Clemo, 2002 ; Barrash and Reboulet, 2004 ). Figure 3 (a) Neutron-derived porosity logs and the stratigraphy based on these logs at the BHRS. (b) Photograph of a nearby gravel pit that is an analog to the BHRS...

... margin somewhat sinuous but approximating straightness. Anterior end broadly rounded, produced ventrally; posterior end narrow, oblique, meeting the dorsal and ventral margins in distinct angles. Surface with a reticulum of pits, the pits being arranged linearly in curving rows. The hinge is similar...

... of enrolled and semi-enrolled trilobites within bottom flowing slurries of flocculated muds that entrained the organisms ( Brett et al. 2012 ). These burial events formed the butter shales that occur in the Waynesville (C5), Kope (C1), Arnheim (C4), and Liberty (C5D) formations. Although these sequences each...

... of the excavation pits. Detailed examination and description of the bottle shows that it is a mouth‐blown crown cap soda bottle. Although precise dating of the bottle to the year is not certain, it appears to be possible that the bottle was among some debris from the 1906 earthquake dumped in the area of today’s...

... and nomenclature for this region have been in flux for many years, and as a result, crinoids from the same or equivalent strata have been associated with multiple formation names, including the Hull, Kirkfield, Cobourg, Bobcaygeon, and Verulam formations (Liberty, 1969 ; Uyeno, 1974 ; Armstrong, 2000 ; see...