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All News and Pages Related to "Iowa Geological Survey"

Trowbridge Hall

Posted on April 30th, 2014

The primary home of the Iowa Geological Survey is on the third floor of Trowbridge Hall on the main campus of the University of Iowa in Iowa City, IA.  Entering the building through the main entrance on the east side of the building from the T. Anne Cleary Walkway, head up the main stairs to the third […]

Geologic Hazards

Posted on April 30th, 2014

Earthquakes Iowa Geological Survey geologists have information on historic Iowa earthquakes and significant earthquakes in other areas of the midcontinent. Only 12 earthquakes with epicenters in Iowa are known in historic times. The first known occurred in 1867 near Sidney in southwest Iowa, the most recent in 1948 near Oxford in the east-central part of […]

Mineral Resources

Posted on April 30th, 2014

Cutting dimiensonal stone in the Bealer Quarry circa 1906 near Cedar Valley in Cedar County. Photo from the Calvin image database. Iowa is richly endowed with a variety of rock resources suitable for building construction, and their utility is particularly well displayed in the early architectural heritage of our state. Although building stone is still […]

Geophysics

Posted on April 30th, 2014

The Iowa Geological Survey (IGS) incorporates electrical geophysics into a host of geologic and hydrogeologic research projects.  Geophysical surveys provide a continuous model of the shallow subsurface, complementing traditional point data. Subsurface materials can be characterized by their ability to conduct or resist electrical current.  Physical and chemical properties such as grain size, moisture content, mineralogy, and […]

Research

Posted on April 30th, 2014

The relationship between IIHR and the Iowa Geological Survey creates an organization with expertise that covers all aspects of Iowa’s hydrologic cycle — precipitation, evaporation and evapotranspiration, surface flow, infiltration, and groundwater flow.  This broad scope facilitates collaborations and allows researchers to develop the best possible water-related information, analyses, and tools for Iowans. Critical Iowa […]

General Geology

Posted on April 30th, 2014

Mineral, Rock, and Fossil Identification Geologists at the Iowa Geological Survey regularly identify rocks, minerals, and fossils that are brought into our office.  If you are not able to stop by our office, send photos of the specimen via email.  Please make sure that the photos capture all aspects of the specimen, are in focus, […]

STATEMAP

Posted on April 30th, 2014

The STATEMAP program supports detailed geologic mapping of Iowa, with particular emphasis on solving environmental problems. These maps provide a detailed view of the geologic materials that most affect Iowans’ day-to-day activities, and give users a sound base of geologic information from which to make resource decisions. The National Geologic Mapping Act of 1992 created […]

Water Resources Management

Posted on April 30th, 2014

The Water Resources Management program of the Iowa Geological Survey evaluates the availability and sustainability of Iowa’s groundwater resources. Numerical methods and modeling are used extensively to try to predict and reduce future impacts and conflicts between water users. The long-term management of groundwater resources is essential to promote economic growth, and at the same […]

Mission and Vision

Posted on April 30th, 2014

Mission To collect, reposit, and interpret geologic and hydrogeologic data, to conduct foundational research, and to provide Iowans with the knowledge needed to effectively manage our natural resources for long-term sustainability and economic development. Vision To be a nationally recognized leader in geologic and hydrogeologic sciences, building upon our rich scientific heritage and serving Iowans […]

Publications

Posted on April 30th, 2014

The Iowa Geological Survey maintains a catalog that lists available and out-of-print publications that provide information on the geological resources of Iowa, including the state’s groundwater, bedrock, glacial materials, and mineral resources. The out-of-print/loan publications are no longer available for purchase. Loan copies for most of these publications may be obtained, however, on request from […]