glauconitic sandstone

glauconitic sandstone

[¦glȯ·kə¦nid·ik ′san‚stōn]
(petrology)
A quartz sandstone or an arkosic sandstone that has many glauconite grains.
References in periodicals archive ?
The overlying Lumshival Formation consists of white quarz arenitic lithofacies, bioclastic limestone facies and glauconitic sandstone lithofacies which resulted from delta front to inner ramp depositional setting.
Provenance: Low silisiclastic contents in the green sandstone indicate a distant or low relief source, but the presence of the glauconitic sandstone suggests intermittent influxes of coarse silisiclastic material, possibly by turbidity current (Plates 7 and 8).
One can find the phosphatic Obolus sandstone, including brachiopod bivalves and fragments, radioactive alum shale, glauconite-rich gray bentonite clay and glauconitic sandstone.
Fewer than 60 specimens assigned to 18 species were previously recorded from the calcareous glauconitic sandstone of the Maekula Member (Schmidt 1904, 1907; Lamansky 1905; Opik 1937; Balashova 1961, 1966).
At the upstream end of the section, hard, very fossiliferous glauconitic sandstone forms a shoal across the channel (Locality 1).
2 showed some glauconitic sandstone about 60 meters above the base of the formation.
At 5,249 feet (1,600 meters) the well encountered a glauconitic sandstone unit with flow to the surface.
Glauconitic sandstone and carbonaceous shale with occasional belemnite and ammonite were taken into account to mark the Chichali Formation.
Cambrian###Kussak Formation###Gray and purplish shale and glauconitic sandstone.
At 5,249 feet (1,600 meters) the well encountered a glauconitic sandstone unit which produced a 29% mud cut, and caused the well to flow at surface.
The outcrop studies reveal that the Chichali Formation is composed ofthree facies; the base ofChichali Formation is composed ofFine Grained Sandstone Facies, which shows the deltaic or deltaic beach deposition, Glauconitic Sandstone Facies is present in the middle part ofthe Chichali Formation, which is characterized by the presence ofsubstantial amounts ofglauconite and thus believed to be deposited in the deeper shelfal environment, and the upper part of Chichali Formation is comprised of Glauconitic Dolostone Facies, which represents deposition on mixed elastic-carbonate dominated shelf.