Publications
Listed below are publication products directly associated with the Geology, Energy & Minerals Science Center:
Filter Total Items: 1276
A reinterpretation of the δDH2O of inclusion fluids in contemporaneous quartz and sphalerite, Creede mining district, Colorodo: a generic problem for shallow orebodies? A reinterpretation of the δDH2O of inclusion fluids in contemporaneous quartz and sphalerite, Creede mining district, Colorodo: a generic problem for shallow orebodies?
Water extracted from fluid inclusions in quartz from shallow epithermal ore deposits often has a hydrogen isotope composition (δD) different from that of water extracted from inclusions in associated minerals. This difference is usually attributed to the involvement of primary fluids from multiple sources. Isotopic and homogenization and freezing temperature determinations on fluid...
Authors
Nora K. Foley, Philip M. Bethke, Robert O. Rye
Remarkable isotopic and trace element trends in potassic through sodic Cretaceous plutons of the Yukon-Koyukuk Basin, Alaska, and the nature of the lithosphere beneath the Koyukuk terrane Remarkable isotopic and trace element trends in potassic through sodic Cretaceous plutons of the Yukon-Koyukuk Basin, Alaska, and the nature of the lithosphere beneath the Koyukuk terrane
During the period from 110 to 80 m.y. ago, a 450-km-long magmatic belt was active along the northern margin of Yukon-Koyukuk basin and on eastern Seward Peninsula. The plutons intruded Upper Jurassic(?) and Lower Cretaceous volcanic arc rocks and Cretaceous sedimentary rocks in Yukon-Koyukuk basin and Proterozoic and lower Paleozoic continental rocks in Seward Peninsula. Within Yukon...
Authors
Joseph G. Arth, Robert E. Criss, Clara C. Zmuda, Nora K. Foley, W. W. Patton, T. P. Miller
Spectrographic analyses of insoluble-residue samples, Joplin 1 degree x 2 degrees quadrangle, Kansas and Missouri : drill hole nos. 30, 31, and 32 Spectrographic analyses of insoluble-residue samples, Joplin 1 degree x 2 degrees quadrangle, Kansas and Missouri : drill hole nos. 30, 31, and 32
No abstract available.
Authors
John H. Bullock, Helen A. Whitney
Spectrographic analyses of insoluble-residue samples, Joplin 1 degree x 2 degrees quadrangle, Kansas and Missouri : drill hole nos. 39, 40, 41, and 42 Spectrographic analyses of insoluble-residue samples, Joplin 1 degree x 2 degrees quadrangle, Kansas and Missouri : drill hole nos. 39, 40, 41, and 42
No abstract available.
Authors
John H. Bullock, Helen A. Whitney
Isotopic and trace element variations in the Ruby Batholith, Alaska, and the nature of the deep crust beneath the Ruby and Angayucham Terranes Isotopic and trace element variations in the Ruby Batholith, Alaska, and the nature of the deep crust beneath the Ruby and Angayucham Terranes
Thirty-six samples from plutons of the Ruby batholith of central Alaska were collected and analyzed for 22 trace elements, and many were analyzed for the isotopic compositions of Sr, Nd, O, and Pb in order to delimit the processes that produced the diversity of granodioritic to granitic compositions, to deduce the nature of the source of magmas at about 110 Ma, and to characterize the...
Authors
Joseph G. Arth, Clara C. Zmuda, Nora K. Foley, Robert E. Criss, W. W. Patton, T. P. Miller
Spectrographic analyses of insoluble-residue samples, Joplin 1 degree x 2 degrees quadrangle, Kansas and Missouri : drill hole nos. 36, 37, and 38 Spectrographic analyses of insoluble-residue samples, Joplin 1 degree x 2 degrees quadrangle, Kansas and Missouri : drill hole nos. 36, 37, and 38
No abstract available.
Authors
John H. Bullock, Helen A. Whitney
Spectrographic analyses of insoluble-residue samples, Joplin 1 degree x 2 degrees quadrangle, Kansas and Missouri : drill hole nos. 33, 34, and 35 Spectrographic analyses of insoluble-residue samples, Joplin 1 degree x 2 degrees quadrangle, Kansas and Missouri : drill hole nos. 33, 34, and 35
No abstract available.
Authors
John H. Bullock, Helen A. Whitney
A BASIC program for locating references cited in geoscience manuscripts A BASIC program for locating references cited in geoscience manuscripts
[No abstract available]
Authors
Daniel O. Hayba
Geochemistry of mineralized quartzite beds in the Spokane Formation (Belt Supergroup), Rogers Pass area, Lewis and Clark County, Montana Geochemistry of mineralized quartzite beds in the Spokane Formation (Belt Supergroup), Rogers Pass area, Lewis and Clark County, Montana
No abstract available.
Authors
Jon J. Connor, James M. McNeal
USGS minimum commercially developable field size USGS minimum commercially developable field size
No abstract available.
Authors
Emil D. Attanasi
Source of lead and mineralizing brines for rossie-type Pb-Zn veins in the Frontenac axis area, New York ( USA). Source of lead and mineralizing brines for rossie-type Pb-Zn veins in the Frontenac axis area, New York ( USA).
Veins composed mainly of calcite and some galena, sphalerite, fluorite, and other minerals are widespread in the Frontenac axis area of New York and Ontario. In New York, the veins (Fig. 1) occur mainly west and northwest of Gouverneur (Brown, 1983). The veins, mined in the 1800s for lead, were first described by Emmons (1838). Smyth (1903) called these the "Rossie lead veins," a name...
Authors
Robert Ayuso, Nora K. Foley, C. Erwin Brown
White mica geochemistry of the Catheart Mountain porphyry copper deposit, Maine White mica geochemistry of the Catheart Mountain porphyry copper deposit, Maine
White micas from hydrothermally altered and mineralized zones in the Catheart Mountain Cu-Mo porphyry deposit have regular compositional variations that are generally related to the contents of copper, total iron, and sulfur in the whole rock. Micas in unmineralized rocks exhibit no such relationship. White mica compositions reflect primarily the control imposed by the celadonitic...
Authors
Robert A. Ayuso