Now that Timothy Darvill, Archaeologist and Geoffrey Wainwright, Archaeologist have confirmed Stonehenge broadly mirrors South Wales geology as proposed by Garry Denke, Geologist in the '70s, here are more geological, paleontological, and geophysical papers from their reading list.
1) Denke, G.W. 1973.
Stonehenge Phase I: An Openpit Coalfield Model; The First Geologic Mining School. (Indiana University of Pennsylvania) GDG, 73: 1-56.
2) Denke, G.W. 1975.
Invertibrate Paleontology of the High Tor Limestone (Lower Carboniferous) and the Upper Senonian Chalk (Late Cretaceous) of Stonehenge. (Arizona State University) GDG, 75: 1-7.
3) Denke, G.W. 1977.
Possible Source Areas of the High Tor Limestone (Early Mississippian) Fill of the Aubrey Holes and Heel Stone Ditch in Europe. (Arizona State University) GDG, 77: 1-24.
4) Beus, S.S. 1984.
Fossil Associations in the High Tor Limestone (Lower Carboniferous) of South Wales. (Northern Arizona University) Journal of Paleontology, 58: 3; 651-667.
5) Denke, G.W. 1984.
Mid-Dinantian (Waulsortian Facies) High Tor Limestone: The First Stones Transported to Stonehenge from the South Wales Coast. (Arizona State University) GDG, 84: 1-4.
6) Denke, G. 1984.
Magnetic and Electromagnetic Surveys at Heelstone, Stonehenge, United Kingdom. (Indiana University of Pennsylvania) GDG, 84: 5-42.
7) Lees, A. and Miller, J. 1985.
Facies variatian in Waulsortian buildups, Part 2; Mid-Dinantian buildups from Europe and North America. (Revised) Geological Journal, 20: 159-180.
8) Geologist, Denke, G. 1986.
The Paleontology of Stonehenge, England. (Arizona State University) GDG, 86: 1-3. (State of Texas, County of Stonewall, Book 393, Pages 848-853)
http://www.archaeology.co.uk/index.php?option=com_content&task=view&id=402&Itemid=26
Archaeology is a fascinating subject. Enjoy.