Those interbeds might also contain a higher amount of other minor authigenic compounds typical of GA--phosphates (mainly apatite as biogenic detritus and nodules), carbonates (calcite and dolomite as cement and concretions), barite and glauconite
3] -- 7 Amber thous t -- 8 Gypsum mln t -- 9 Glauconite
sandy loam mln [m.
Sorption studies on an analogue of Glauconite
0 net) wells at Gilby targeting the Edmonton, Glauconite
and Ellerslie formations, and three (3.
They were deposited under anoxic conditions as evidenced by a lack of borers, a paucity of other benthic organisms, and the presence of pyrite and glauconite
within the specimens.
The consolidated sands have a calcareous matrix, shale fragments and Glauconite
occur while Lignite streaks and Limonite are common.
Geologists speculated that the materials might be colored by deposits of glauconite
Features preserved in the material just beneath each sheet of glauconite
appear to be burrows, possibly left by sediment-dwelling invertebrates.
1991, The significance of Rb-Sr glauconite
ages, Bonneterre Formation, Missouri: Late Devonian-early Mississippian brine migration in the midcontinent, Journal of Geology, v.
Accessory minerals include feldspars, altered micas, zeolites and nascent glauconite
Pebble-size breccia in the lower 7 cm of the lithofacies grades up over 15 cm into a dark gray skeletal packstone containing pyrite, glauconite
pellets, and phosphatic debris.
The well was drilled out then cased as an oil well and stimulated with a 40 tonne frac which resulted in a productive response from the Glauconite
After swirling sediment and water on a glass slide, drying the sample on a hot plate, and covering it with optical cement or Canada balsam, I'd examine it under a microscope to estimate its sand, silt, and clay content, and then the composition percentage of such elements as quartz, feldspar, mica, glauconite
, and various microfossils such as foraminifera, nannofossils, diatoms, and radiolaria.
Endeavor's prospects are in the middle Mannville Glauconite
formation and the Lower Mannville sands.
Sledy razmyva i vnutriplastovye narusheniya v glaukonitovykh izvestnyakakh nizhnego silura Leningradskoj oblasti [Traces of erosion and intrastratal dislocations in Lower Silurian glauconite
sandstones of Leningrad region].