Geology

Filter Total Items: 196
Date published: November 29, 2018
Status: Active

Hydrothermal alteration at Yellowstone - linking geophysical models to alteration mineralogy- Paul Bedrosian

This opportunity focuses on integration of geophysical modeling with constraints on alteration mineralogy from spectral measurements on drill core and hyperspectral remote sensing data.

Date published: November 29, 2018
Status: Active

Towards Near Surface Ground Motion Characterization in Oklahoma and Texas through Active- and Passive-Seismic Site Characterization- Alan Yong

Earthquakes, such as the 2011 M5.7 Prague, Oklahoma, and recent northern Texas M4 event, demonstrate the need for improved
understanding of site amplification and seismic hazards in the central United States. The intern will be trained by USGS scientists to use the state-of-the-art site investigation methods at seismic station sites in California before applying the methods in Oklahoma...

Date published: November 28, 2018
Status: Active

Hurricane Sandy Response- Linking the Delmarva Peninsula's Geologic Framework to Coastal Vulnerability

The Delmarva Peninsula is a 220-kilometer-long headland, spit, and barrier island complex that was significantly affected by Hurricane Sandy. In order to better constrain controls on coastal vulnerability and evolution, the region’s sediment sources, transport pathways and sediment sinks must be identified. This project defines the geologic framework of the Delmarva coastal system through...

Date published: November 27, 2018
Status: Active

Regional-to-national scale electrical resistivity model development- Paul A Bedrosian

The advent of national geophysical initiatives (e.g. EarthScope, AusLamp, SinoProbe) has started the race to develop regional- and national-scale geophysical models. In parallel, the need for such models is on the rise within the natural-hazard and resource sectors. This internship focuses on development of three-dimensional electrical resistivity models derived from magnetotelluric (MT) data...

Date published: November 27, 2018
Status: Active

Integrated Modeling and Prediction Division- Stacey Archfield

We are seeking candidates to work on a national synthesis to attribute observed changes in floods and/or develop and test methods to adjust flood-frequency estimates for change. The specific topic of interest within these research themes are negotiable based on the intern’s particular research interests and career goals. 

Date published: November 19, 2018
Status: Active

California Oil, Gas, and Groundwater (COGG) Program

The USGS California Water Science Center is working in partnership with state and federal agencies to answer the following questions about oil and gas development and groundwater resources:

Contacts: Matthew Landon
Date published: November 5, 2018
Status: Active

Coral Reef Project: Guam

As part of the USGS Coral Reef Project, the USGS is working on the west coast of Guam to help determine the effects of sedimentation in nearshore waters.

Contacts: Curt Storlazzi
Date published: October 30, 2018
Status: Active

Characterizing and dating manganese oxide deposits in the central and southern Appalachian Mountains- Daniel Doctor

Supergene manganese oxides are critical ore deposits that record valuable information about climate and geochemical processes at their time of formation. The intern’s research will focus on characterizing and dating these minerals using scanning electron microscopy and 40Ar/39Ar geochronology. 

Date published: October 30, 2018
Status: Active

The influence of preferential flow on water and solute fluxes in the unsaturated zone- John Nimmo

Much unsaturated-zone water moves not as typically slow diffuse flow, but rapidly through preferential flow channels such as root holes and fractures. Impacts are profound and far-reaching for issues such as contaminant transport, ecohydrology, and aquifer recharge. Understanding is limited and accepted theory is lacking, making preferential flow a crucial and exciting area of earth science....

Date published: October 30, 2018
Status: Active

California Seafloor Mapping Program data collection

Here we describe the data collection methods and techniques of the California Seaflor Mapping Program: mapping, video and photography ground-truthing, and seismic profiling data collection.

Date published: October 30, 2018
Status: Active

California Seafloor Mapping Program map-set production

USGS and the California Ocean Protection Council (COPC) are supporting development of peer-reviewed map sets for California’s mainland State Waters.

Date published: October 30, 2018
Status: Active

California State Waters Map Series: Map sheets and accompanying pamphlet

The map sheets display seafloor morphology and character, identify potential marine benthic habitats, and illustrate both the surficial seafloor geology and shallow (to about 100 m) subsurface geology. The total number of sheets varies by area but always includes a core of the same 10 sheets and may include specialty sheets depending on the region. The available sheet sets are listed by study...