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Paul Liu at Nanjing Institute

Winneshiek Project presentations in China

Posted on June 11th, 2018

IGS Geologist, Paul Liu, recently visited China and made presentations on the Winneshiek Project at Nanjing Institute of Geology & Paleontology, Academy of China and Anhui University of Science & Technology.  

map of state of iowa with prairie pothole region highlighted

Farmed wetland papers published in Wetlands journal

Posted on May 31st, 2018

Twelve researchers, state-wide, collaborated to publish 9 papers as a special feature representing the state-of-the-science in terms of water, soils and ecosystem services of farmed and drained wetlands. This collection has been published in the most recent issue of the journal Wetlands (Volume 38, April 2018, issue 2). The IGS’s Matthew Streeter and Keith Schilling […]

A well being drilled on an Iowa golf course in 2015

Management Effects on Soil Properties

Posted on May 10th, 2018

Research from the Iowa Geological Survey’s Schilling and Streeter, Effects of Golf Course Management on Subsurface soil properties in Iowa, has been recently published in the EGU journal “Soil”. Read the full publication at https://tinyurl.com/y8cm6a63

2018 NCGSA display

North Central Geological Society of America meeting

Posted on April 23rd, 2018

The IGS attended, presented, and displayed posters and core from Iowa at the North Central Geological Society of America meeting in Ames, Iowa last week.  Pictured is a selection of cores belonging to the IGS which were on display, along with three posters detailing the Decorah Impact Structure, the Manson Impact Structure, and the Midcontinent […]

CVRMS rock show is this weekend

Posted on March 22nd, 2018

The CVRMS Rock Show will be this week end, Saturday, March 24 and Sunday, March 25, at the Hawkeye Downs Expo Center in Cedar Rapids.  Plan to attend for demos, displays, programs, and great vendor booths.  

Oxbows for Conservation

Posted on February 22nd, 2018

Preliminary studies, by Keith Schilling, et al., in Iowa suggest that oxbows intercepting surface and tile water can reduce the amount of nitrate-nitrogen reaching streams by roughly one half.  These studies will be presented during the upcoming 2018 Iowa Water Conference, March 21-22 in Ames, Iowa. https://iawatercenter.wordpress.com/2018/02/20/oxbows-for-conservation-and-nutrient-reduction-in-iowa-floodplains/

Optimizing Buffer Placement and Effectiveness

Posted on February 14th, 2018

In a research paper recently published in Landscape Ecology, by Keith Schilling (Associate State Geologist), Peter Jacobson (Grinnell College) and Calvin Wolter (Iowa DNR), the authors evaluated the patterns of sediments, water quality and land use in southern Iowa riparian zones.  Riparian zones are the strip of land which borders streams, usually classified in zones […]

Erosion and Sediment Delivery in Iowa

Posted on February 8th, 2018

The Iowa Geological Survey has been working on updating the USDA’s aging report on erosion and sediment delivery in Iowa which used data gathered in the 1970’s to estimate how much soil actually reaches Iowa streams. Sediment delivery is important to understand since even current estimates of soil erosion do not specify where eroded soil […]

Floyd the ‘Noid Says

Posted on January 29th, 2018

A message from Ray Anderson, vice-president of the Cedar Valley Rocks and Minerals Society: “Hello All, You have probably heard that the drive to convince the Iowa legislature to designate the crinoid as Iowa’s State Fossil is underway. We have 6 sponsors for Senate Joint Resolution 2001 “a joint resolution recognizing the fossil crinoid as […]

Crinoids proposed as state fossil for Iowa.

Posted on January 22nd, 2018

Crinoids have been proposed as the state of Iowa’s official fossil in Senate Joint Resolution 2001, introduced by Senator Joe Bolkcom, D-Iowa City. https://tinyurl.com/y85f6pcw