Petrographical investigation of the Salt Wash sediments : final report /

This report represents an attempt to use quantitative petrography to elucidate criteria for differentiating ore-bearing from barren sediments in the Salt Wash member of the Morrison formation of the Colorado Plateau. The main premise upon which this approach is based is that the factors which determine whether a sediment contains ore or not is a function largely, if not solely, of the characteristics of the sedimentary rock. It follows that if this premise is true, then the petrographic characteristics of a sediment containing ore should differ from those of the sediments which are barren.

Standard-Bearer

Aztec; 2 ft. 7 11/16 in.x 1 ft. 1 27/64 in.x 1 ft. 1 1/32 in.; sandstone

Petrographical investigations of the salt wash sediments : progress report...

"Contract No. AT(30-1)-1362."

Sedimentary properties of salt wash sandstones as related to primary structures.

"Contract No. AT-30-1-1182."

Uranium deposits on southwest rim of Lukachukai Mountains, northeast Arizona /

Part of the Salt Wash sandstone outcrop on the southwest rim of the Lukachukai Mountains is strongly mineralized in cross-bedded, channel sandstone. The deposits are opposite the strongly mineralized belt on the northeast rim. A north to northeast ore trend is possibly related to the original Salt Wash stream system.

... Abrasives; products of Canada; technology and application ...

In lower right corner of t.-p.: no. 673, 675, 677, 699, respectively.

Community water supply well shooting/blasting near Hillcrest Subdivision, Lake County, Illinois.

The purpose of this fact sheet is to provide a summary of literature research on the use of well "shooting" or blasting technology in Northern Illinois. Water well shooting or blasting is done to increase water yield from a sandstone aquifer for a particular water supply well ... The Lake County Health Department (LCHD) detected a chemical, vinyl chloride -- from a family of chemicals known as volatile organic compounds (VOCs) -- in some private wells in the unincorporated Hillcrest Subdivision near Wauconda, through routine well testing done in the fall of 2003. The LCHD presented these findings to the public at a January 13, 2004 meeting. The concern was raised at the public meeting that recent subsurface water well "shooting" or blasting techniques, performed in the deep sandstone aquifer (800 to 1,000 feet below ground surface), in the borehole of a community water supply (CWS) well in the area, might have impacted the shallow aquifer in such a way as to contribute to private well contamination under investigation in the Hillcrest Subdivision.

Natural history of New York

Each v. has also individual t.-p.

Shore line of G.I.

continued from verso: showing high banded Cambrian sandstone cliffs rising abruptly from Lake Superior along the w. edge of the island

Submarine slumps in delta-front sandstones of the Upper Cretaceous Blair Formation, Rock Springs uplift, Wyoming : syndepositional slumps on the western shores of the interior Cretaceous sea /

Mode of access: Internet.

Depositional environment of Upper Cretaceous black sandstones of the Western Interior /

Mode of access: Internet.