Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Gregory A. Wandless"'
Autor:
Marci M. Robinson, David S. Powars, Elizabeth Hajek, Jocelyn A. Sessa, Lucy E. Edwards, Lee R. Kump, Debra A. Willard, Gregory A. Wandless, S. M. Trampush, Timothy J. Bralower, Jean M. Self-Trail
Publikováno v:
Paleoceanography. 32:710-728
The Paleocene-Eocene Thermal Maximum (PETM) was an interval of extreme warmth that caused disruption of marine and terrestrial ecosystems on a global scale. Here we examine the sediments, flora and fauna from an expanded section at Mattawoman Creek-B
Autor:
Nora K. Foley, Gregory A. Wandless, Dwight C. Bradley, Robert A. Ayuso, Peter J. Haeussler, David W. Farris
Publikováno v:
Tectonophysics. 464:137-163
The Paleocene Kodiak batholith, part of the Sanak–Baranof belt of Tertiary near-trench intrusive rocks, forms an elongate body (~ 150 km long) that transects Kodiak Island from SW to NE. The batholith consists of three zones (Southern, Central, and
Publikováno v:
Applied Geochemistry. 23:320-342
The abandoned Valzinco mine, which worked a steeply dipping Kuroko-type massive sulfide deposit in the Virginia Au–pyrite belt, contributed significant metal-laden acid-mine drainage to the Knight’s Branch watershed. The host rocks were dominated
Autor:
Gregory A. Wandless, Robert A. Ayuso, Peter J. Haeussler, Anna S. Colvin, Peter E. Bittenbender, John F. Slack, Susan M. Karl
Publikováno v:
Professional Paper. :1-20
Volcanogenic massive sulfide (VMS) deposits on Prince of Wales Island and vicinity in southeastern Alaska are associated with Late Proterozoic through Cambrian volcanosedimentary rocks of the Wales Group and with Ordovician through Early Silurian fel
Publikováno v:
Rendiconti online della Società Geologica Italiana. 31:185-186
Publikováno v:
Open-File Report.
Autor:
Elisabeth L. Rowan, W.C. Pat Shanks, Peter E. Bittenbender, Christina A. Neal, Daniel O. Hayba, Gregory A. Wandless, Pamela A. Gemery, Peter J. Haeussler, Robert G. McGimsey, Robert A. Ayuso, Rick L. Wessels, Michelle L. Coombs, Kenneth J. Bird, Susan M. Karl, W. Matthew Burns, David W. Houseknecht, John F. Slack, W. Ian Ridley, Anna S. Colvin
Publikováno v:
Professional Paper.
Publikováno v:
Scientific Investigations Report.
Publikováno v:
Open-File Report.
4 Introduction 5 Lead isotope geochemistry 5 Lead isotope techniques 6 Results 6 Discussion 9