Royal Payne Posted June 15, 2012 Share Posted June 15, 2012 According to the geological map of Arkansas that someone linked me to on my 'Are These Shell Impressions' thread, I think I am searching for fossils in the 'TJ Jackson Group' part of Jefferson County, Arkansas (the bright orange area). The map explanation says that this means 'Eocene'. I have a couple of questions about this. #1: How old would that be? #2: Is this just for the surface of the ground, or would this change if you dig down a few feet? #3: What does 'TJ Jackson' mean? In short, this newbie would like a tutorial about how to read this information. Any help would be appreciated. Snowflakes aren't the only things that hold beauty in their diversity. -- Author Unknown Link to comment Share on other sites More sharing options...
thanatocoenosis Posted June 15, 2012 Share Posted June 15, 2012 1) http://en.wikipedia.org/wiki/Geologic_time_scale 2) Yes, and yes. 3) Don't know. 2012 NCAA Collegiate Round Ball Champs; and in '98, '96, '78, 58, '51, '49, and '48, too. Link to comment Share on other sites More sharing options...
thanatocoenosis Posted June 15, 2012 Share Posted June 15, 2012 Oh, the "TS Jackson Group" is a group of rocks that is similar in composition. It denotes something larger than formation, but smaller that a series. 2012 NCAA Collegiate Round Ball Champs; and in '98, '96, '78, 58, '51, '49, and '48, too. Link to comment Share on other sites More sharing options...
Royal Payne Posted June 15, 2012 Author Share Posted June 15, 2012 Thanks for the link, and thanks for the explainations! I've learned a lot; I understand the map now. Snowflakes aren't the only things that hold beauty in their diversity. -- Author Unknown Link to comment Share on other sites More sharing options...
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