Tag Archive for: Eocene Green River Formation

Uinta Basin Photomicrograph. Photo by Michael Vanden Berg.

Photomicrograph of limestone from the Eocene-age Green River Formation showing small ostracod shells surrounding and filling larger
gastropod fossils.

Nine Mile Canyon Road, Carbon County, Utah. Photo by Emily Kleber.

Cliffs of deltaic sandstone in the Eocene-age Green River Formation tower over Nine Mile Canyon, an area rich in geologic and human history.

aapg.org

Geologic intervals that may have looked a bit ho-hum when pierced by the drill bit on its way to the Real Target can, on second look, yield some pleasant surprises.

The Uteland Butte Member of the Eocene Green River Formation in the Uinta Basin in Utah is one of these.

It’s the basal member of the Green River, above the Upper Paleocene to Lower Eocene Wasatch Formation, which is predominantly a sandstone with red, green and gray shales deposited in a fluvial setting.

In contrast, the Uteland Butte is indicative of a lacustrine environment and is mainly limestone, dolomite, organic rich calcareous mudstone and siltstone, with some thin sandstones, according to AAPG member Michael Vanden Berg.

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Tag Archive for: Eocene Green River Formation

Uinta Basin Photomicrograph. Photo by Michael Vanden Berg.

Photomicrograph of limestone from the Eocene-age Green River Formation showing small ostracod shells surrounding and filling larger
gastropod fossils.

Nine Mile Canyon Road, Carbon County, Utah. Photo by Emily Kleber.

Cliffs of deltaic sandstone in the Eocene-age Green River Formation tower over Nine Mile Canyon, an area rich in geologic and human history.

aapg.org

Geologic intervals that may have looked a bit ho-hum when pierced by the drill bit on its way to the Real Target can, on second look, yield some pleasant surprises.

The Uteland Butte Member of the Eocene Green River Formation in the Uinta Basin in Utah is one of these.

It’s the basal member of the Green River, above the Upper Paleocene to Lower Eocene Wasatch Formation, which is predominantly a sandstone with red, green and gray shales deposited in a fluvial setting.

In contrast, the Uteland Butte is indicative of a lacustrine environment and is mainly limestone, dolomite, organic rich calcareous mudstone and siltstone, with some thin sandstones, according to AAPG member Michael Vanden Berg.

READ MORE

MORE INFO