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Mapping the middle and upper Devonian marine-nonmarine transition in the Appalachian Basin from West Virginia to New York. Mapping the middle and upper Devonian marine-nonmarine transition in the Appalachian Basin from West Virginia to New York.
No abstract available.
Authors
Daniel H. Doctor, Alan D. Pitts
Lunar mare basaltic volcanism: Volcanic features and emplacement processes Lunar mare basaltic volcanism: Volcanic features and emplacement processes
Volcanism is a fundamental process in the geological evolution of the Moon, providing clues to the composition and structure of the mantle, the location and duration of interior melting, the nature of convection and lunar thermal evolution. Progress in understanding volcanism has been remarkable in the short 60-year span of the Space Age. Before Sputnik 1 in 1957, the lunar farside was...
Authors
James W. Head III, Lionel Wilson, Harald Hiesinger, Carolyn H. Van der Bogert, Yuan Yuan Chen, James L. Dickson, Lisa Gaddis, Junichi Haruyama, Lauren Jozwiak, Erica Jawin, Chunlai Li, Jianzhong Liu, Tomokatsu Morota, Debra H. Needham, Lillian R. Ostrach, Carle M. Pieters, Tabb C. Prissel, Yuqi Qian, Lei Qiao, Malcolm R. Rutherford, David R. Scott, Jennifer L. Whitten, Long Xiao, Feng Zhang, Ouyang Ziyuan
Geophysical mapping of the Great Lakes Tectonic Zone and surrounding Precambrian geology in the central Upper Peninsula, Michigan Geophysical mapping of the Great Lakes Tectonic Zone and surrounding Precambrian geology in the central Upper Peninsula, Michigan
The Great Lakes Tectonic Zone (GLTZ) forms the boundary between the Wawa-Abitibi subprovince (north side) and Minnesota River Valley subprovince (south side) within the Archean Superior Province. The GLTZ is concealed for all of its 1100 km length, except south of Marquette in the central Upper Peninsula of Michigan (Sims, 1991; Sims and Day, 1993). Near KI Sawyer, it is exposed as a NW...
Authors
Benjamin J. Drenth, William F. Cannon
USGS telemetry project USGS telemetry project
Tagging bigheaded carp (i.e., Bighead Carp and Silver Carp) and surrogate fish species with acoustic transmitters has become an invaluable management tool in the Upper IWW (i.e., upper Illinois River, lower Des Plaines River, and the CAWS). For example, movement probabilities between adjacent navigation pools need to be estimated to parameterize models, such as the SEICarP Model—a...
Authors
Marybeth K. Brey, Jessica C. Stanton, Sean Bailey, Douglas Appel, Andrea K. Fritts, P. Ryan Jackson
Status and trends in the Lake Superior fish community, 2023 Status and trends in the Lake Superior fish community, 2023
The U.S. Geological Survey annually conducts fishery surveys across Lake Superior that describe trends in fish species occurrence and relative abundance to inform fisheries management and large lake ecology. In 2023, the Lake Superior fish community was sampled with daytime bottom and surface trawls at 51 nearshore locations in June and 31 offshore locations in July. Nearshore bottom...
Authors
Mark R. Vinson, Lori M. Evrard, Owen T. Gorman, Sydney B Phillips, Daniel L. Yule
Geophysical architecture of the Neoarchean Mentor anorthosite intrusive complex, northwestern Minnesota Geophysical architecture of the Neoarchean Mentor anorthosite intrusive complex, northwestern Minnesota
The ca. 2737 Ma (Souders, 2023) Mentor anorthosite intrusive complex (MAIC) lies near the northern margin of the Wawa subprovince of the Archean Superior Province, in an area of northwestern Minnesota where the Wawa, Quetico, and Wabigoon subprovinces are juxtaposed in close proximity (Fig. 1). The rocks of interest are entirely concealed by 10s to >100 m of unconsolidated Quaternary...
Authors
Benjamin J. Drenth, Amy Radakovich Block, George J. Hudak, Amanda Kate Souders, Stacy Saari
Field testing of an underwater acoustic deterrent system in a Marseilles pool gravel pit on the Illinois River Field testing of an underwater acoustic deterrent system in a Marseilles pool gravel pit on the Illinois River
Acoustic deterrent technologies are being developed to prevent the spread of invasive carp (Bighead Carp, Silver Carp, Grass Carp, and Black Carp) from the Mississippi River watershed to the Great Lakes. To assess this technology, field testing of the deterrent equipment and newly developed sound stimuli on wild invasive carp populations is essential. Large-scale experimental deployments...
Authors
Mark Roth, Marybeth K. Brey, William V. Lamoreux, Todd Johnson, Daniel Henry Krause, Jose Rivera, Christa M. Woodley, Aaron C. Urbanczyk, Henry Hershey
Chapter 24 - Resilience-based challenges and opportunities for fisheries management in Anthropocene rivers Chapter 24 - Resilience-based challenges and opportunities for fisheries management in Anthropocene rivers
Few pristine rivers remain worldwide, as they are among the most anthropogenically modified ecosystems. We suggest the geomorphology, hydrology and ecology of Anthropocene rivers are fundamentally different from historical natural rivers. These changes challenge conventional fisheries management practices, suggesting the tools supporting fisheries management may require expansion so that
Authors
Jason A. DeBoer, Kristen L. Bouska, Christian Wolter, Martin C. Thoms
Documentation of a pilot workflow for reanalyzing the U.S. Geological Survey principal aquifers datasets and prototype principal aquifer version 2 dataset for three aquifer systems Documentation of a pilot workflow for reanalyzing the U.S. Geological Survey principal aquifers datasets and prototype principal aquifer version 2 dataset for three aquifer systems
A pilot workflow to refine the principal aquifers of the United States as defined in the Ground Water Atlas of the United States and create a new version of the principal aquifers (referred to as “version 2”) is documented in this report. The workflow incorporates decision points for creating finer scale spatial data for the principal aquifers and refining the original principal aquifer
Authors
Martha G. Nielsen
Geographic distribution: Incilius alvarius (Sonoran desert toad) Geographic distribution: Incilius alvarius (Sonoran desert toad)
No abstract available.
Authors
Erika M. Nowak, Karina Cocks, Charles A. Drost, Janie Agyagos, Eve Berlinksy, Jennifer Steffen, Rafal Banas, Meredith Talbert, Sara Eno
A management-focused population viability analysis for North Atlantic right whales A management-focused population viability analysis for North Atlantic right whales
The North Atlantic right whale (Eubalaena glacialis) is among the most endangered whale species in the world and has been in decline since 2010. Considerable effort is directed toward its recovery by striving to remove threats. In this report, we describe the development of a population viability analysis for right whales that is designed to assess the current status, evaluate the...
Authors
Michael C. Runge, Daniel W. Linden, J. A. Hostetler, Diane L Borggaard, Lance P. Garrison, Amy R. Knowlton, Véronique Lesage, Robert A. Williams, Richard M Pace