Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Jennifer N. Gifford"'
Publikováno v:
Water, Vol 14, Iss 18, p 2869 (2022)
Increasing prevalence of cyanotoxins in surface water bodies worldwide threatens groundwater quality when contaminated water recharges an aquifer through natural or artificial means. The subsurface fate of anatoxin-a (ATX) is not well studied. Labora
Externí odkaz:
https://doaj.org/article/e87d181fb411416bb46d4a30787e2145
Publikováno v:
Geosciences, Vol 10, Iss 7, p 271 (2020)
The accretion of the Wyoming, Hearne, and Superior Provinces to form the Archean core of western Laurentia occurred rapidly in the Paleoproterozoic. Missing from Hoffman’s (1988) original rapid aggregation model was the Medicine Hat block (MHB). Th
Externí odkaz:
https://doaj.org/article/47484cda027a4b52b64ab2648cae05c7
Autor:
Jennifer N. Gifford, Elizabeth J. Vitale, Brian F. Platt, David H. Malone, Inoka H. Widanagamage
Publikováno v:
Geosciences, Vol 10, Iss 2, p 80 (2020)
We provide new detrital zircon evidence to support a Maastrichtian age for the establishment of the present-day Mississippi River drainage system. Fieldwork conducted in Pontotoc County, Mississippi, targeted two sites containing montmorillonitic san
Externí odkaz:
https://doaj.org/article/793c407124154cd68a37fb9bcffe2490
Autor:
David H. Malone, David A. Grimley, Jennifer N. Gifford, Patrick M. Colgan, John P. Craddock, Andrew C. Phillips, Paul A. Meister, Theodor H. Lowe, Ellyn S. Rickels
Publikováno v:
Journal of Sedimentary Research. 92:1044-1052
Zircons extracted from 567 granitic cobbles, in middle to late Pleistocene tills of the Lake Michigan Lobe in Illinois, provide a remarkably consistent Archean age of ∼ 2.7 Ga, with 87% dating between 2.6 and 2.8 Ga. This finding suggests a persist
Publikováno v:
The Journal of Geology. 130:253-282
Autor:
Zack Ledbetter, Ryan Bessen, Jennifer N. Gifford, Sean P. McGuire, David H. Malone, Kyle True
Publikováno v:
The Mountain Geologist. 57:375-388
This project involved the construction of a detailed geologic map of the Park Reservoir, Wyoming 7.5-Minute Quadrangle (Scale 1:24,000). The Quadrangle occurs entirely in the Bighorn National Forest, which is a popular recreation site for thousands o
Autor:
Andrew M. O'Reilly, Lance D. Yarbrough, Mohammed Al harthy, Brian F. Platt, Jennifer N. Gifford
Publikováno v:
The Journal of Geology. 128:337-370
The Chesterian (Mississippian) Hartselle Sandstone is a tar sand exposed in the Black Warrior Basin and southern Appalachian fold belt in northern Mississippi and Alabama. Previous studies ...
Autor:
David H. Malone, Michael B. Wolf, John P. Craddock, John E. Malone, Jennifer N. Gifford, Jeanette C. Arkle
Publikováno v:
The Mountain Geologist. 56:267-294
The Bighorn Mountains in north-central Wyoming reveal one of the largest exposures of 2800 Ma to 3000 Ma rocks in Laurentia. The northern part of the crystalline core is composed of the composite Bighorn batholith, whereas the central and southern ar
Autor:
David H. Malone, Jennifer N. Gifford, David Grimley, Patrick Colgan, Theodor Rex Hartmann Lowe
Publikováno v:
Geological Society of America Abstracts with Programs.
Publikováno v:
Geological Society of America Abstracts with Programs.