2018 IGWS Fossil CalendAR CAL2018

Get your copy of the 2018 IGWS Fossil CalendAR with Augmented Reality so you can bring interactive content to life on your smart device. Explore 3-D models and see what these former inhabitants of Indiana look like! The 21 by 33 inch calendar is printed in full color on heavy poster paper.

Underground Coal Gasification Potential in the Illinois Basin SR74

This report provides a summary of the development of underground coal gasification technology throughout the world and the results of an evaluation of the potential for application in the Illinois Basin. Two coal members—the Springfield Coal of the Petersburg Formation and the Seelyville Coal of the Linton Formation in Indiana and their equivalents in Illinois and western Kentucky (Dekoven/Davis/Seelyville and Dekoven and Davis, respectively) are assessed in detail based on thickness and depth. In Indiana, four promising underground coal gasification areas were previously identified in the Springfield Coal Member and five in the Seelyville Coal Member; this publication briefly reviews those findings. We subsequently selected one area in Posey County, Indiana, for further examination; the study began by drilling three new boreholes, was followed by analyses of coal and gas, and resulted in a reevaluation of coal volumes available for underground coal gasification technology. In this report, we present these new results and evaluate underground coal gasification potential in the area.

Indiana Limestone DI12

Indiana limestone is a world-class dimension building stone quarried in south-central Indiana. Known to geologists as the Salem Limestone, to the stone industry as Indiana Limestone, and locally as Bedford stone or oolitic limestone, this unique material has dominated the national market as a premier building stone for almost two centuries.

Seelyville Coal Member DI10

The Indiana Geological and Water Survey has been collecting physical and chemical data and mapping the Seelyville Coal Member for many years. This Story Map is the most comprehensive digital compilation of geologic information about the Seelyville Coal Member in Indiana that is currently available from the Indiana Geological and Water Survey. This application allows users to interactively explore the coal data. These data are important for regional coal quality evaluations and can be used by the public, industry, and state and federal governments.

Springfield Coal Member DI11

The Springfield Coal Member of the Petersburg Formation is the primary coal seam mined in Indiana. The Indiana Geological and Water Survey has been collecting physical and chemical data and mapping the Springfield Coal Member for many years. This publication is the most comprehensive digital compilation of geologic information about the Springfield Coal Member in Indiana that is currently available from the Indiana Geological and Water Survey. This application allows users to interactively explore the coal data. These data are important for regional coal quality evaluations and can be used by the public, industry, and state and federal governments.

Danville Coal Member DI08

The Danville Coal Member of the Dugger Formation is an important mining target in Indiana. The Indiana Geological Survey has been collecting physical and chemical data and mapping the Danville Coal Member for many years. This Story Map is the most comprehensive digital compilation of geologic information about the Danville Coal Member in Indiana that is currently available from the Indiana Geological Survey. This application allows users to interactively explore the coal data. These data are important for regional coal quality evaluations and can be used by the public, industry, and state and federal governments.

Atlas of New Albany Shale Photomicrographs of Organic Matter DI03

The New Albany Shale is an organic-matter-rich formation of Upper Devonian and Lower Mississippian age in the Illinois Basin of the United States. The unit extends through the states of Illinois, Indiana, and western Kentucky and correlates with the Antrim Shale of the Michigan Basin and the Ohio Shale of the Appalachian Basin. Over years the Indiana Geological Survey (IGS) has accumulated an abundance of photomicrographs taken in reflected and fluorescent light. Until now, these images have not been published or made publicly available; they are, however, a substantial resource for academic and industry researchers. Most of the images are from Indiana's portion of the Illinois Basin. Illinois and Kentucky shale samples were obtained from the geological surveys in those states, and then photographed. Currently, the atlas contains a total of 923 microphotographs from 40 locations. Additional microphotographs will be added periodically.

Hymera Coal Member DI09

The Indiana Geological Survey has been collecting physical and chemical data and mapping the Hymera Coal Member of the Dugger Formation for many years. This Story Map is the most comprehensive digital compilation of geologic information about the Hymera Coal Member in Indiana that is currently available from the Indiana Geological and Water Survey. This application allows users to interactively explore the coal data. These data are important for regional coal quality evaluations and can be used by the public, industry, and state and federal governments.

Glaciers of Indiana POSTER13

Glaciers of Indiana is a full-color 26” by 34” poster that teaches about the immense sheets of ice that covered the state during the last Ice Age. Through field photographs and easy-to-understand diagrams, it explains how glaciers deposited sediments and changed Indiana’s landscape. A must for teachers and anyone who is interested in Indiana geology.

GeoNotes MI114

A travel drive comes loaded with 37 one-page articles about various topics in Indiana geology. Originally designed to be published as weekly newspaper articles, GeoNotes have been updated and are perfect for the classroom.

ABCs of Indiana Geology MI122

This set of 26 ABC cards define various geologic terms, including rocks, minerals, fossils, and earth science concepts. Perfect for kids and adults who want to learn more about geology. The cards are 5.5" by 8.5" and are printed in full color.

Carl B. Rexroad: Reminiscence of a long career in conodont biostratigraphy and a bibliography of his published works OP75

Born and educated in the Midwest, Carl Buckner Rexroad, Ph.D., (1925–2016) devoted his more than 60 year career investigating Paleozoic conodonts, their taxonomy, and their biostratigraphy. Initially affiliated with the Illinois State Geological Survey, he published his first abstract in 1955 on conodonts from the type Chester (upper Mississippian) in Illinois, followed a year later with a paper on that subject. He subsequently joined the Indiana Geological Survey, Indiana University, as a paleontologist and stratigrapher in 1961 and remained there for the next 54 years. During that time he collaborated with many other specialists and paleontologists from around the world, refining high-resolution interregional and intercontinental correlations of Paleozoic strata. As a teacher and mentor, he supervised university students, often co-authoring papers with them. Many students went on to successful careers themselves as conodont researchers. Rexroad’s legacy in Midwestern biostratigraphy, stratigraphy, and general geology is documented in the nearly 200 papers and abstracts he published, his last being shortly before his death in 2016. He leaves behind a unique reference collection for Silurian biostratigraphy in eastern North America, documenting the care, diligence, and skill that defined his long career.

Geologists Licensing
The LPG Board examines and licenses all eligible candidates for entry into the profession as a Professional Geologist.

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