| Name |
Title |
Phone |
E-mail |
Expertise |
| Abston, Carl C. |
Computer Specialist |
303-236-1194 |
cabston@usgs.gov |
|
| Adrian, Betty M. |
Associate Chief Scientist, MRT Central Region |
303-236-1806 |
badrian@usgs.gov |
Abilities - optical emission spectroscopy; QA/QC; atomic absorption spectroscopy;
Outreach; Quality mangement issues/concerns. |
| Aleinikoff, John N. |
Research Geologist |
303-236-7884 |
jaleinikoff@usgs.gov |
Isotope Geology/Geochronology; economic geology, structure & tectonics;
igneous & metamorphic petrology; quaternary geology/climate change |
| Arbogast, Belinda F. |
Chemist |
303-236-2495 |
arbogast@usgs.gov |
Site inventory and analysis (landscape architect), program development,
QA/QC technical consultant; graphics and facilitation skills, analytical
chemistry; scuba diver. |
| Ball, Bridget |
|
303-236-5538 |
bball@usgs.gov |
|
| Bove, Dana J. |
Research Geologist |
303-236-1557 |
dbove@usgs.gov |
Geologic mapping in volcanic environments; detailed studies and mapping
of hydrothermally altered rock with a focus on its relationship to pre-mining
baseline stream information. Additional area of experitise includes GIS
work using Mapinfo, ERDAS Imagine and Arcview. |
| Brown, Zoe Ann |
Physical Science Technician |
303-236-1608 |
zbrown@usgs.gov |
Various analytical instruments-Spectrometers: AA, ICP, EDXRF. Analyzers:
CO2, S, CHN, Ion (F, Cl). |
| Brownfield, Isabelle |
Physical Science Technician |
303-236-4953 or
303-236-3188 |
ibrownfield@usgs.gov |
Mineralogy, SEM, EMPA, XRD. |
| Budahn, James R. |
Research Chemist |
303-236-4724 |
jbudahn@usgs.gov |
Instrumental neutron activation analysis (chemical analysis of rocks,
minerals, and environmental samples including plants and animals for 40-50
elements), Gamma-ray spectrometry (210Pb, 137Cs, 7Be dating). Interests
in: Geochemistry of igneous rocks, environmental geochemical studies, and
identification and characterization of geological and environmental materials. |
| Cardoso, Miguel |
Information Technology Specialist |
303-236-1181 |
mcardoso@usgs.gov |
|
| Carlson, Robert R. |
Research Geologist |
303-236-2485 |
rrcarlson@usgs.gov |
Mineral resource assessments, environmental geochemistry studies, geologic
mapping, analytical geochemistry, mafic and ultramafic igneous intrusions,
platinum group mineral deposits, fire-assay methods, K-12 educational outreach. |
| Chaffee, Maurice A. |
Research Geologist, Emeritus |
303-236-1855 |
mchaffee@usgs.gov |
Environmental, ore deposit, and baseline geochemistry; biogeochemistry;
Applications of computers to geochemical / geological problems; Manuscript
editing; Technology transfer / outreach transfer / outreach on international
level. |
| Chaney, Coleen D. |
Administrative Officer |
303-236-1823 |
cchaney@usgs.gov |
|
| Christiansen, William D. |
Geologist |
303-236-5513 |
wdchrist@usgs.gov |
|
| Church, Stanley E. |
Research Geologist |
303-236-1900 |
schurch@usgs.gov |
Trace-element geochemistry, Bioavailability of metals, Pb-isotopic fingerprinting,
Environmental geochemistry of acid mine drainage, Geochemical Base lines
and backgrounds, Mineral Resource specialist. |
| Name |
Title |
Phone |
E-mail |
Expertise |
| Day, Warren C. |
Associate Chief Scientist, MRT Central Region |
303-236-6484 |
wday@usgs.gov |
A specialist turned generalist as years have progressed and opportunities
evolve. Mainly structural and regional geology, specializing in multiply
deformed and metamorphosed terranes as well as the mineral deposits they
host. Igneous petrology activities include origin of granite, petrogenesis
of volcanic sequences, and related ore genesis studies. Start from basics:
get the geologic map right and everything falls into place. |
| Desborough, George A. |
Research Geologist, Emeritus |
303-236-5611 |
gdesboro@usgs.gov |
Mineral deposits, Mineralogy, rock-water interactions, environmental geochemistry. |
| Detra, David E. |
Research Chemist |
303-236-1804 |
ddetra@usgs.gov |
Exploration/environmental geochemistry, atomic emission spectroscopy,
inorganic analytical chemistry, QA/QC, data validation/management. |
| DeWitt, Ed H. |
Research Geologist |
303-236-5636 |
edewitt@usgs.gov |
Economic geology/Isotope Geology; structure & tectonics; igneous &
metamorphic petrology. |
| Driscoll, Rhonda L. |
Physical Science Technician |
303-236-5635 |
rdriscoll@usgs.gov |
Powder XRD analysis. Mineral identification. Rock cutting, crushing, grinding,
and polishing. Mineral separates obtained via Wilfley Table, Franz Magnetic
Separator, and heavy liquids. Sample prep for osotope analysis. General
lab. Scientific essay. Aesthetic minerals. |
| du Bray, Edward A. |
Chief Scientist, MRT Central Region |
303-236-1800 |
edubray@usgs.gov |
Igneous petrology / economic geology; Saudi Arabia; Bolivia; Montana;
petrogenesis of shallow crustal magmatic systems; microprobe; kevex; digital
geologic maps, geoenvironmental mineral deposit models; mineral resource
assessment, regional geologic mapping, petrography, petrogenetic modeling. |
| Dutton, Brenda L. |
Information Technology Specialist |
303-236-1808 |
bdutton@usgs.gov |
|
| Elliott, James |
Scientist Emeritus |
303-236-5735 |
jeelliot@usgs.gov |
|
| Emsbo, Poul |
Research Geologist |
303-236-1113 |
pemsbo@usgs.gov |
|
| Eppinger, Robert G. |
Research Geologist |
303-236-2468 |
eppinger@usgs.gov |
Economic geology, environmental geochemistry of mineral deposits; Mineral
deposits resource assessment; Mineralogical phases related to geochemical
distributions; Spanish (rusty, but used to be fluent). |
| Evans, Karl V. |
Research Geologist |
303-236-5625 |
kvevans@usgs.gov |
Economic Geology/Isotope Geology; U-Pb geochronology; structural geology
end tectonics; geologic mapping; mineral resources assessment; geoenvironmental
mineral deposit models. |
| Fey, David J. |
Physical Scientist |
303-236-8923 |
dfey@usgs.gov |
Environmental geochemistry related to abandoned mine lands: watershed
sediment studies, dump characterization, baseline determination, leaching
studies. ICP-AES analyses. |
| Gemery, Pamela A. |
Geologist |
303-236-1920 |
pgemery@usgs.gov |
Stable isotope geochemistry, isotope ratio mass spectrometry; preparing
and analyzing all kinds of samples for carbon, hydrogen, oxygen and sulfur
isotopes. |
| Goldfarb, Richard J. |
Research Geologist |
303-236-2441 |
goldfarb@usgs.gov |
Alaskan metallogenesis, lode gold deposts, fluid inclusion geochemistry,
stable isotope applications, Cordilleran tectonics. |
| Granito, Matt |
|
303-236-1412 |
mgranito@usgs.gov |
|
| Grauch, Richard I. |
Research Geologist |
303-236-5551 |
rgrauch@usgs.gov |
Multidisciplinary approach to understanding the genesis of mineral deposits.
Skills include general geology, most types of microscopy, nondestructive
analysis of small mineral grains, mineralogy, metamorphic petrology. |
| Gray, John E. |
Research Geologist |
303-236-2446 |
jgray@usgs.gov |
Economic geology, ore genesis studies, isotope geochemistry, exploration
geochemistry, environmental geology, environmental geochemistry of mercury
mines. |
| Green, Gregory N. |
Geologist |
303-236-5390 |
ggreen@usgs.gov |
Equipment Engineering Design / Electronics Support / Computer Hardware;
economic geology; telecommunications; cartography; spelunking. |
| Gulley, Margaret M. |
Administrative Tech |
303-236-1704 |
mgulley@usgs.gov |
|
| Name |
Title |
Phone |
E-mail |
Expertise |
| Heran, William D. |
Geologist |
303-236-1351 |
wheran@usgs.gov |
Applications of multitechniquegeophysics to mineral resource assessment
and environmental problems. |
| Herring, James R. |
Research Geologist |
303-236-5559 |
jherring@usgs.gov |
(1) Low temperature aqueous geochemistry; (2) Industrial mineral commodities,
specifically phosphate, potash, clay, aggregate, sand and gravel; (3) Coastal
processes; (4)Critical ecosystem fire history analysis; (5) Environmental
analysis, particularly trace elements, etc. |
| Hofstra, Albert H. |
Research Geologist |
303-236-5530 |
ahofstra@usgs.gov |
Ore Genesis, Exploration Geochemistry, Environmental Geochemistry, Ore
Petrology, Fluid Inclusions, Stable isotopes, Chemical Modeling Analysis
of gases and electrolytes in fluid inclusions and natural waters; Mass Spectrometry,
Gas Chromatography, Ion Chromatography |
| Kelley, Karen D. |
Research Geologist |
303-236-2467 |
kdkelley@usgs.gov |
Economic geology, isotope geochemistry, geochronolgy, igneous petrology
and geochemistry, exploration geochemistry, environmental geochemistry.
Speaks German. |
| Kinch, James (Luke) |
|
303-236- |
|
|
| King, Harley D. |
Geologist Emeritus |
303-236-1852 |
hking@usgs.gov |
Geochemical exploration; mineral resource assessment. |
| Klein, Terry L. |
Research Geologist |
303-236-5605 |
tklein@usgs.gov |
Economic geology (epigenetic gold deposits, base metals), geochemistry
and exploration geochemistry, Precambrian geology, metamorphic and igneous
geology, regional geology (Wyoming province, southeastern U.S., northern
Minnesota). |
| Knepper, Daniel H. |
Research Geologist |
303-236-1385 |
dknepper@usgs.gov |
Geologic applications of remote sensing; geomorphology and surficial geology;
mineral resources and assessment and exploration techniques; structural
geology and tectonics. |
| Name |
Title |
Phone |
E-mail |
Expertise |
| Langer, William H. |
Research Geologist |
303-236-1249 |
blanger@usgs.gov |
Aggregate resources, industrial minerals, applied geology, surficial geologic
mapping, process geomorphology. |
| Larson, William S. |
Information Technology Specialist |
303-236-5640 |
billl@usgs.gov |
GIS, ArcInfo, ArcView, Specialist 5640 Metadata, Remote sensing, CD-ROMs,
Macintosh, Unix, map graphics |
| Leach, Jr., David L. |
Research Geologist |
303-236-5522 |
dleach@usgs.gov |
Geology, geochemistry, environmental aspects of sediment- and metamorphic-hosted
ore deposits. Application of geology, geochemistry, fluid inclusions, isotopes
to problems of migration of crustal fluids. |
| Lee, Gregory K. |
Physical Scientist |
303-236-2491 |
glee@usgs.gov |
GIS/image processing applications in geoscience investigations; Professional
ski instructor; Wide range of field investigation, including extremely remote,
rough, and inaccessible areas. |
| Livo, Keith Eric |
Research Geologist |
303-236-1388 |
elivo@usgs.gov |
Economic geology, mineral resource assessment, geologic integration of
remotely sensed data (Landsat, AVIRIS, RADAR). |
| Luce, Joan |
Secretary |
303-236-1800 |
jluce@usgs.gov |
|
| Lund, Karen I. |
Research Geologist |
303-236-5600 |
klund@usgs.gov |
Regional tectonics/Structural geology. Economic geology; igneous and metamorphic
petrology; Russian language. |
| Marsh, Erin E. |
Physical Science Technician |
303-236-2473 |
emarsh@usgs.gov |
|
| MacDonald, Ian D. |
Administrative Tech |
303-236-1702 |
idmacdonald@usgs.gov |
|
| McDanal, Steve K. |
Information Technology Specialist |
303-236-1187 |
smcdanal@usgs.gov |
|
| Meeker, Gregory M. |
Geologist |
303-236-1081 |
gmeeker@usgs.gov |
|
| Moench, Robert |
Scientist Emeritus |
303-236-5651 |
N/A |
|
| Morgan (aka Morzel), Lisa A. |
Research Geologist |
303-273-8646 |
lmorgan@usgs.gov |
Regional geology and geophysics of volcanic and hydrothermally altered
terranes. Physical volcanology, stratigraphy, rock magnetics; Snake River
Plain-Yellowstone Plateau volcanic province. |
| Mueller, Seth |
|
303-236-1882 |
|
|
| Nash, J. Thomas |
Research Geologist Emeritus |
303-236-5515 |
tnash@usgs.gov |
Lithogeochemistry of mineral deposits; hydrogeochemical signatures of
mineral deposits; geochemistry of mine dumps and mill tailings; surface
water sampling and analysis; passive leach tests of mined materials; mineral
resource assessment; mineral-environmental assessment. |
| Norton, Dan |
Scientist Emeritus |
303-236-2484 |
dnorton@usgs.gov |
|
| Nutt, Constance J. |
Research Geologist |
303-236-1562 |
cnutt@usgs.gov |
Economic geology of disseminated gold deposits, regional geology, transmitted
& reflected light microscopy. |
| O'Leary, Richard M. |
Chemist |
303-236-2493 |
roleary@usgs.gov |
Laboratory method automation using robotics; Development of analytical
techniques using Atomic Absorption Spectrophotometry. LIMS administrator
and QC officer. |
| O'Neill, J. Michael |
Geologist |
303-236-1288 |
jmoneill@usgs.gov |
Structural geology, tectonics, and regional geologic framework studies
of rocks Nd deposits ranging in age from Archean / Early Proterozoic to
Holocene. |
| Name |
Title |
Phone |
E-mail |
Expertise |
| Poole, Forrest |
Scientist Emeritus |
303-236-5599 |
bpoole@usgs.gov |
|
| Radziszewski, Carolina |
Administrative Assistant |
303-236-1810 |
radziszewski@usgs.gov |
|
| Ramsey, Barbara J. |
Visual Information Specialist |
303-236-1826 |
bramsey@usgs.gov |
Create graphics and text in Adobe Illustrator and Photoshop. Use QuarkXpress
for desktop publishing, create and maintain web products, laminate maps,
posters, etc. Operate scanning devices. |
| Ratte, James C. |
Scientist Emeritus |
303-236-5618 |
jratte@usgs.gov |
|
| Ridley, William Ian |
Research Geologist |
303-236-5558 |
iridley@usgs.gov |
Laser ablation ICP-MS analytical methods in geology, geochemical modeling,
electron microprobe. |
| Rombach, Cameron |
|
303-236-1222 |
crombach@usgs.gov |
|
| Shanks III, Wayne (Pat) C. |
Geologist |
303-236-2497 |
pshanks@usgs.gov |
Aqueous geochemistry, stable isotopes (C, H, O, S), geochemical reaction
modeling, fluid flow modeling, hydrothermal processes, acid mine drainage,
environmental geochemistry. |
| Shawe, Daniel |
Scientist Emeritus |
303-236-5588 |
N/A |
|
| Siems, David F. |
Chemist |
303-236-2475 |
dsiems@usgs.gov |
Development and application of WDXRF and EDXRF analytical techniques to
help characterize geologic samples. |
| Sims, Paul K. |
Scientist Emeritus |
303-236-5621 |
N/A |
|
| Smith, David B. |
Research Geologist |
303-236-1849 |
dsmith@usgs.gov |
Regional, environmental, and exploration geochemistry. National geochemical
database development. Ultra-low-density geochemical mapping. Human resource
issues. |
| Smith, Steven M. |
Geologist |
303-236-1192 |
smsmith@usgs.gov |
Exploration & Environmental geochemistry, Geochemical databases, Geochemical
mapping. |
| Spanski, Gregory T. |
Geologist |
303-236-5705 |
gspanski@usgs.gov |
Physical and chemical characterization of clay minerals in surface and
near surface environment; quantitative resource estimation methodology and
applications; and application of geostatistics in characterizing geologic
variables. |
| Speckman, Wendy S. |
Information Technology Specialist |
303-236-5524 |
speckman@usgs.gov |
Designing and implementing databases using current application development
tools, such as Microsoft Access, Visual Basic, Oracle Development. |
| Stoeser, Douglas S. |
Research Geologist |
303-236-9817 |
dstoeser@usgs.gov |
Regional geology (mapping, tectonics), GIS & Information Management,
personal computing, WWW, economic geology-metals, igneous petrology, petrography,
U/Pb and Nd/Sm isotopes, microprobe / SEM, Arabian Shield geology. |
| Stricker, Vicky L.J. |
Administrative Specialist |
303-236-1707 |
vstricke@usgs.gov |
|
| Sweetkind, Donald S. |
Geologist |
303-236-1828 |
dsweetkind@usgs.gov |
Structural geology, geologic controls on groundwater flow, regional geologic
framework studies for hydrologic flow modeling in western U.S., economic
geology. |
| Name |
Title |
Phone |
E-mail |
Expertise |
| Taggart, Jr., Joseph E. |
Chemist |
303-236-1807 |
jtaggart@usgs.gov |
Mineralogy; world wide web documents in hypertext markup language; preparation of glass microbeam standards. |
| Taylor, Cliff D. |
Research Geologist |
303-236-2499 |
ctaylor@usgs.gov |
Economic geology and low temperature aqueous geochemistry. Specialties are VMS and deposits hosted in carbonates such as MVT (Illinois-Kentucky Fluorspar district) and magmatic replacement deposits (Leadville dist., Colorado). Convergent margin and Rocky Mountain tectonics/metallogeny, geology / geochemistry of dolomitized carbonate platforms. |
| Thorman, Charles |
Scientist Emeritus |
303-236-5601 |
cthorman@usgs.gov |
|
| Tysdal, Russell G. |
Research Geologist Emeritus
|
303-236-5597 |
rtysdal@usgs.gov |
Stratigraphy / Structural Geology of SW Montana & Central Idaho; Liberia. |
| Unruh, Daniel M. |
Chemist |
303-236-7682 |
dunruh@usgs.gov |
Pb-Sr-Nd Isotope geochemistry and U-Pb geochronology. |
| Van Gosen, Bradley S. |
Research Geologist |
303-236-1566 |
bvangose@usgs.gov |
Economic Geology / Geochemical Exploration; geochemistry of ore deposits; computer software; digital geologic map compilation. |
| Watson, Kenneth |
Scientist Emeritus |
303-236-1324 |
kwatson@usgs.gov |
|
| Wigton, Paul |
Physical Science Tech |
303-236-1863 |
pwigton@usgs.gov |
|
| Wilson, Anna B. |
Geologist |
303-236-5593 |
awilson@usgs.gov |
Economic geology, mineral resource assessments and locatable mineral reports, digital data reduction and geologic map compilation, and GIS analysis. |
| Winkler, Gary |
Scientist Emeritus |
303-236-9674 |
gwinkler@usgs.gov |
|
|
| Yager, Douglas B. |
Geologist |
303-236-2487 |
dyager@usgs.gov |
GIS and geospatial modeling, abandoned mine lands investigations, geochemical baseline determinations, volcanic rocks and igneous processes, alteration and mineralogy, geologic mapping, digital map preparation. |
| Yacob, Ezra |
Geologist |
303-236-7896 |
eyacob@usgs.gov |
|
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