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Harrisburg Area Geological Society

HAGS The purpose of the Harrisburg Area Geological Society (HAGS) is to stimulate geologic thought, advance and disseminate geologic knowledge, and provide fellowship amongst area individuals interested in earth sciences. Monthly meetings (at GTS Technologies at 441 Friendship Road in Harrisburg) present a realm of geologic topics, ranging from tectonics, coal, carbonate groundwater geochemistry, Martian geomorphology, engineering geophysics, nuclear waste repositories, and ore mineralogy. Field trips allowed members to visit geologic sites within and beyond Pennsylvania. All events are open to the public and free unless otherwise stated. Meetings are at GTS Technologies, 441 Friendship Rd, Harrisburg, PA 17111. They occur at 6:30 PM on the second Thursday of the month, except summer months.

Officers: President- Kent Littlefield- KENT.V.LITTLEFIELD@leidos.com

Vice-president- Bill Bruck- wbruck49@gmail.com

Treasurer-Mike Meyer- mike.meyer.geo@gmail.com

Secretary- Amy Randolph- secretaryhags@gmail.com  

 Up coming events :

Amber: Miniature Scenes Frozen in Time

AmberP

Presented by:  Larry Smith, P.G. – PA DEP HSCA Program

When:     Thursday April 11, 2019

Time:       6:30 PM

Where:    AEG Offices 441 Friendship Road, Harrisburg, PA 

Abstract: The focus of this presentation will concern inclusions in amber.  Amber is categorized as a semi-precious gemstone, and has been used for jewelry and carved ornaments for thousands of years.  It is derived from the resin of coniferous trees, which consists of terpenoid compounds, acid, and alcohol.  When buried, volatiles are driven off, due to pressure and temperature, and through polymerization the material hardens. Given the proper taphonomy conditions, fossils in amber can be preserved with the minutest details.

When extracted from its matrix, amber may be found as rounded to fragile runnels, and display signs of transportation in high or low energy environments, or appear as an in-place deposition, such as in a coal seam (resinite).  Fractures in amber are generally conchoidal and the harder amber (e.g., Burmite) may exhibit fracture planes.  It has a Mohs scale rating from 2.0 to 3, may fluoresce under a UV light, and if burned will omit a pine scent.

The presentation will also include discussion of some recently discovered exotic inclusions that have been found in Burmite from northern Myanmar.

Speaker Bio: Larry Smith is a P.G. who attended Bloomsburg University where he received a BS degree in Geology. He worked as an environmental geologist for over 20 years before accepting a position with DEP’s Hazardous Sites Cleanup program in 2012, as a geologist and regional project manager.  He’s been interested in plant fossils since he was a high school student, and supplemented his geology studies with botany and wetland courses to help provide a better understanding of plant fossils and their environments.  In 2007 he became especially enamored with fossils in amber and has been an avid collector ever since. His collection consists of hundreds of specimens which includes spiders, insects, and plants – some of which are newly-identified species.

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May 9, 2019 – Don Gaffney, P.G., Michael Baker International – landslides in the Pittsburgh area

October 10, 2019 Ron Sloto, USGS and West Chester University – Grace Mine, Lebanon County

HAGS Guidebooks, available for purchase, $5 each, plus $2 S7H. Multiple books may have discounted shipping.

1st Annual Field TripGeology in the South Mountain area, Pennsylvania, Noel Potter, Jr., editor, April 24, 1982, Reprinted 1992. 37 p. $5.00 plus $2.00 S&H.

2nd Annual Field Trip‐ Geology along the Susquehanna River, south‐central Pennsylvania, J. Ronald Mowery, editor, April 16, 1983, 55 p. $5.00 plus $2.00 S8H.

3rd Annual Field Trip‐ Stratigraphy, structural style, and economic geology of the York‐Hanover Valley, G. Robert Ganis and David Hopkins, April 28,1984, 51 p. $5.00 plus $2.00 S&H.

4th Annual Field Trip‐ Pennsylvania’s polygenetic landscape, William D. Sevon, April 27, 1985, Reprinted 1992, 55 p. $5.00 plus $2.00 S&H.

5th Annual Field Trip‐ Selected geology of Dauphin and Northumberland Counties, Pennsylvania, by W. D. Sevon, W. E. Edmunds, G. R. Ganis, and J. P. Wilshusen, May 17, 1986, 22 p. $5.00 plus $2.00 S&H.

6th Annual Field Trip‐ Lower Jurassic diabase and the Battle of Gettysburg, D. T. Hoff, J. R. Mowery, and G. R. Ganis, April 25, 1987,17 p. plus appendices. $5.00 plus $2.00 S&H.

7th Annual Field Trip‐ The geology of the Lower Susquehanna River area, a new look at some old answers, Glenn H. Thompson, Jr., editor, May 7,1988, 56 p. $5.00 plus $2.00 S&H.

8th Annual Field Trip‐ Karst development and environmental geology in the carbonate rocks of the Lehigh and Lebanon Valleys, William E. Kochanov, April 29, 1989, 33 p. $5.00 plus $2.00 S&H.

In cooperation with the 20th annual Binghamton Geomorphology Symposium at Dickinson College‐The rivers and valleys of Pennsylvania, then and now, by William D. Sevon, October 20, 1989, 59 p. $5.00 plus $2.00 S&H.

10th Annual Field Trip‐ The Ridge and Valley Physiographic Province and the East Broad Top Railroad, William D. Sevon, June 1, 1991, 24 p. $5.00 plus $2.00 S&H. 1

1th Annual Field Trip‐ Paleozoic geology of the Paw Paw‐Hancock area of Maryland and West Virginia, Marcus M. Key and Noel Potter, Jr., May 9,1992, 25 p. $5.00 plus $2.00 S&H.

12th Annual Field Trip‐ South Mountain and the Triassic in Adams County, Pennsylvania, Raymond Britcher, editor, May 22, 1993, 41 p. $5.00 plus $2.00 S&H.

13th Annual Field Trip‐ Geology of the Lebanon Valley and western end of the Reading Prong, Charles Scharnberger, editor, April 23. 1994, 68 p. $5.00 plus $2.00 S&H.

15th Annual Field Trip‐ Pseudo‐Morainic Topography of the Allentown Area of Eastern Pennsylvania, Duane D. Braun and William E. Kochanov, May 4, 1996, 28 p. $5.00 plus $2.00 S&H.

16th Annual Field Trip‐ Notes on the Hamburg Klippe: biostratigraphy, ash layers, olistostromes, and “exotics,” G. Robert Ganis, April 26, 1997, 52 p. $5.00 plus $2.00 S&H

17th Annual Field Trip‐ Geomorphology in the Northern Cumberland Valley, PA, including the Carlisle Deluge of 1779, Noel Potter, Jr., Donald Hartman, and Helen Delano, April 18, 1998, 49 p, $5.00 plus $2.00 S&H.

18th Annual Field Trip‐ The Cove Syncline by canoe, William M. Roman and Michael A. Knight, May 15, 1999, 16 p. plus maps, Out of Print

19th Annual Field Trip‐ Geology of the Kishacoquillas Valley and vicinity, Mifflin County, Pennsylvania, Michael A. Knight and William M. Roman, May 20, 2000, 18 p. plus maps and sections, $5.00 plus $2.00 S&H.

20th Field Trip‐ Geology and Geomorphology of the South Mountain Area, Cumberland and Franklin Counties, Pennsylvania, Noel Potter, Jr., and William D. Sevon, May 14, 2011, 64 p., $5.00 plus $2.00 S&H.

21st Field Trip‐ Shermans Creek from Dellville to Duncannon, Perry County, Pennsylvania, William Roman, May 12, 2012, 48 pages, color, $5.00 plus $2.00 S&H.

22nd Field Trip‐ Some geological aspects of the north side of the Cumebrland Valley in Cumberland County, PA, Bill Sevon, May 4, 2013, 33 pages, large font, color photos, $5.00 plus $2.00 S&H.   No formal guidebooks were prepared for the 9th (1990) and 14th (1995) Field Trips. The 2001 trip was a repeat of the 2000 trip.