Coal-bearing formations in the western part of the San Juan basin of New Mexico

Beaumont, Edward C.

doi:10.56577/ffc-19.33

Cited by 4 publications

(5 citation statements)

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“…2; see Beaumont, this report). The Dilco Coal Member of the Crevasse Canyon Formation developed during a regressive sequence, inland from the marine and coastal-barrier Gallup sandstones (Beaumont, 1968). The Cleary-Gibson coal-bearing sequence in the Gallup area developed inland of a major turn-around in the shoreline, allowing for several thick coals to develop during minor stillstands in the shoreline (Roybal, 1989).…”

Section: Comparison Of Crevasse Canyon Formation Fieldsmentioning

confidence: 99%

“…The Cleary-Gibson coal-bearing sequence in the Gallup area developed inland of a major turn-around in the shoreline, allowing for several thick coals to develop during minor stillstands in the shoreline (Roybal, 1989). The lower coals of the Gibson Coal Member in the Crownpoint field were deposited during a regressive period, and the upper coal beds in this sequence were deposited as part of a subsequent transgressive cycle (Beaumont, 1968).…”

Section: Comparison Of Crevasse Canyon Formation Fieldsmentioning

confidence: 99%

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Quality assessment of strippable coals in northwestern New Mexico: Fruitland, Menefee, and Crevasse Canyon Formation coals in San Juan Basin, and Moreno Hill Formation coals in Salt Lake field

Hoffman¹,

Campbell²,

Beaumont³

1993

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During three years of drilling and sampling in the San Juan Basin, 524 coal core samples were collected from 149 drill sites on approximate 2 mi centers in the Fruitland, Menefee, Crevasse Canyon, and Moreno Hill Formations. Most of these drill sites were placed along the lines parallel to the Late Cretaceous shorelines in areas where thickest coals are at depths of about 200 ft. Eight drill sites in the Chacra Mesa field were drilled on a line perpendicular to the shorelines on 1 mi centers; the Moreno Hill Formation sites in the Salt Lake field and the Fruitland Formation in the Fruitland field were drilled on trends perpendicular to the Late Cretaceous shorelines.The Fruitland Formation coals were from the Fruitland, Bisti, and Star Lake fields; the upper coal member of the Menefee Formation coals were from the Chacra Mesa and La Ventana fields; the Cleary Coal Member of the Menefee Formation coals were from the La Ventana, Chacra Mesa, San Mateo, and Standing Rock fields; and the remaining Menefee coals analyzed were from the Moreno field. Cleary-Gibson, Gibson, and Dilco Coal Member coals of the Crevasse Canyon Formation were cored and analyzed from the Gallup and Crownpoint fields, and coals from the Moreno Hill Formation were collected and analyzed from the Salt Lake field.Significant aspects of chemistry, quality, coal rank, thickness trends, stratigraphic-depositional features, and petrographic composition are presented in this report. Petrographic analyses indicate a difference in maceral content between the Fruitland coals and the other older formations sampled. The Fruitland coals have a higher percentage of liptinite, in particular the resinite constituent of the liptinite group is much higher than for the Menefee and Crevasse Canyon coals. In general, the Fruitland coals have a higher hydrogen/volatile matter ratio which is in part influenced by the resinite content. The Moreno Hill Formation coals in the Salt Lake field have the highest inertinite content of all the formations sampled, indicating oxidation during coal development.The Fruitland coals tend to be the most economically viable because of their thickness, relative continuity, and overall quality, albeit having a high ash yield. The Menefee Formation coals do not have the same degree of bed continuity or thickness as the Fruitland coals, but the ash yield is lower and the rank is equivalent to that of the Fruitland coals in the Bisti and Star Lake fields. Of the Menefee Formation coal fields investigated, the San Mateo field has the best economic potential because of the thickness of the coals and the low sulfur and ash. The Cleary-Gibson coals in the Gallup area have the greatest economic potential of the Crevasse Canyon fields examined. This coal-bearing sequence has both multiple coal beds and relatively thick coals. The Cleary-Gibson coals also have low ash and sulfur, which enhance their economic potential. Of the remaining fields drilled, the upper coal member Menefee coals in the La Ventana field and the Crevasse Canyon coals in parts of the Crownpoint field may be economic. The La Ventana upper member coals are relatively thick and have a low ash yield. In the Crownpoint field the coals are thickest in the area northwest of the town of Crownpoint and near Borrego Pass.

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Section: Comparison Of Crevasse Canyon Formation Fieldsmentioning

confidence: 99%

Section: Comparison Of Crevasse Canyon Formation Fieldsmentioning

confidence: 99%

Quality assessment of strippable coals in northwestern New Mexico: Fruitland, Menefee, and Crevasse Canyon Formation coals in San Juan Basin, and Moreno Hill Formation coals in Salt Lake field

Hoffman¹,

Campbell²,

Beaumont³

1993

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“…3). The most economically significant coal in the basin is found in the stratigraphically higher Fruitland Formation (Beaumont, 1968).…”

Section: Stratigraphic Settingmentioning

confidence: 99%

Palynology and age of South Hospah coal-bearing deposits, McKinley County, New Mexico

Jameossanaie¹

1987

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Ninety-four samples from four core sections in the South Hospah coal-bearing deposits, McKinley County, New Mexico, yielded a rich palynomorph assemblage. One hundred and seventy-two species assigned to 91 form genera of spores, gymnospermous pollen, and angiospermous pollen are described in this paper. Two new genera, eight new species, nine new combinations, and two new ranks are proposed. One hundred and fourteen of the described palynomorphs are either stratigraphically restricted to the Cretaceous System, or their oldest reported occurrence is in the Cretaceous. The palynomorph assemblages indicate a Late Cretaceous (early Campanian) age for the South Hospah deposits. Assignment of these strata to the Menefee Formation is appropriate according to palynological evidence. The source of some of the clastic material in the South Hospah deposits can be interpreted based on the occurrence of palynomorphs recycled from older strata.

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“…Interior of the United States (Sears and others, 1941;Pike, 1947;Beaumont, 1968;Young, 1973;and Molenaar, 1974).…”

Section: Rocks Of Jurassic Ag'e the Entrada Sandstone Andmentioning

confidence: 99%

Geology of Riley-Puertecito area, southeastern margin of Colorado Plateau, Socorro County, New Mexico

Massingill¹

1977

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Coal-bearing formations in the western part of the San Juan basin of New Mexico

Cited by 4 publications

References 0 publications

Quality assessment of strippable coals in northwestern New Mexico: Fruitland, Menefee, and Crevasse Canyon Formation coals in San Juan Basin, and Moreno Hill Formation coals in Salt Lake field

Quality assessment of strippable coals in northwestern New Mexico: Fruitland, Menefee, and Crevasse Canyon Formation coals in San Juan Basin, and Moreno Hill Formation coals in Salt Lake field

Palynology and age of South Hospah coal-bearing deposits, McKinley County, New Mexico

Geology of Riley-Puertecito area, southeastern margin of Colorado Plateau, Socorro County, New Mexico

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