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The '''Glorieta Formation''' is a [[Formation (geology)|geologic formation]] in [[New Mexico]]. It preserves fossils characteristic of the [[Kungurian]] [[Age (geology)|age]] of the [[Permian]] [[Period (geology)|geology]].
The '''Glorieta Formation''' is a [[Formation (geology)|geologic formation]] in [[New Mexico]]. It is exposed in most of the flanking uplifts of the [[Rio Grande Rift]]<ref name="needham_1943"/> and extends in the subsurface to west Texas.<ref name="Sakuraf_etal_1995">{{cite journal |last1=Sakuraf |first1=Shinichi |last2=Loucks |first2=Robert G. |last3=Gardner |first3=John S. |title=Nmr Core Analysis Of Lower San Andres/Glorieta/Upper Clear Fork (Permian) Carbonates: Central Basin Platform, West Texas |journal=SPWLA Annual Logging Symposium |date=1995 |volume=36 |url=https://www.onepetro.org/conference-paper/SPWLA-1995-M |accessdate=28 April 2020}}</ref> It is a massive white cliff-forming [[sandstone]], fine to medium grained, that weathers to reddish brown. First named in 1915,<ref name="Keyes_1915">{{cite journal |last1=Keyes |first1=C.R. |title=Foundation of exact geologic correlation |journal=Iowa Academy of Science Proceedings |date=1915 |volume=22 |pages=249-267}}</ref> it was long considered either the uppermost member of the [[Yeso Formation]] or the lowermost member of the [[San Andreas Formation]] but was promoted to independent formation status in 1943.<ref name="needham_1943"/> It is particularly prominent in [[Glorieta Pass]] but extends west to the [[Jemez Mountains]] (where it pinches out in the central [[Nacimiento Mountains]]) and south to the [[Socorro, New Mexico|Socorro]] area.<ref name="needham_1943">{{cite journal |last1=NEEDHAM |first1=C. E. |last2=BATES |first2=R. L. |title=Permian type sections in central New Mexico |journal=Geological Society of America Bulletin |date=1 November 1943 |volume=54 |issue=11 |pages=1653–1668 |doi=10.1130/GSAB-54-1653}}</ref><ref>{{cite web |last1=Various |title=Geologic Unit: Glorieta |url=https://ngmdb.usgs.gov/Geolex/UnitRefs/GlorietaRefs_8383.html |website=National Geologic Map Database |accessdate=21 May 2019}}</ref>


==History==
The Glorieta Formation is of [[Kungurian]] age and is likely a shallow marine equivalent of the [[Coconino Sandstone]] of [[Arizona]], from which it was separated by the Defiance uplift.<ref name="baars_1961">{{cite journal |last1=Baars |first1=D.L. |title=Permian Blanket Sandstones of Colorado Plateau |journal=AAPG Special Publication Series |date=1961 |volume=22 |pages=179-207 |url=http://archives.datapages.com/data/specpubs/sandsto1/data/a055/a055/0001/0150/0179.htm |accessdate=28 April 2020}}</ref> It is regionally uniform and shows cross stratification suggesting subaqueous deposition, except for local coastal eolian deposition.<ref>{{cite web |last1=Baars |first1=D.L. |title=Permian rocks of north-central New Mexico |journal=New Mexico Geological Society Annual Fall Field Conference Guidebook Series |issue=25 |date=1974 |pages=167–169 |url=https://nmgs.nmt.edu/publications/guidebooks/downloads/25/25_p0167_p0169.pdf |accessdate=5 June 2019}}</ref>
Keyes first named the formation in 1915.<ref name="Keyes_1915">Keyes 1915</ref> It was long considered either the uppermost member of the [[Yeso Formation]] or the lowermost member of the [[San Andreas Formation]] but was promoted to independent formation status in 1943.<ref name="needham_1943">Needham 1943</ref>


==References==
==Geology==
The Glorietta Formation is exposed in most of the flanking uplifts of the [[Rio Grande Rift]]<ref name="needham_1943"/> and extends in the subsurface to west Texas.<ref name="Sakuraf_etal_1995">Sakuraf ''et al.'' 1995</ref> It is a massive white cliff-forming [[sandstone]], fine to medium grained, that weathers to reddish brown. It is particularly prominent in [[Glorieta Pass]] but extends west to the [[Jemez Mountains]] (where it pinches out in the central [[Nacimiento Mountains]]) and south to the [[Socorro, New Mexico|Socorro]] area.<ref name="needham_1943"/>

The Glorieta Formation is of [[Kungurian]] age and is likely a shallow marine equivalent of the [[Coconino Sandstone]] of [[Arizona]], from which it was separated by the Defiance uplift.<ref name="baars_1961">Baars 1961</ref> It is regionally uniform and shows cross stratification suggesting subaqueous deposition, except for local coastal eolian deposition.<ref name="baars-1974">Baars 1974</ref>

==Footnotes==
{{reflist}}
{{reflist}}

==References==
* {{cite journal |last1=Baars |first1=D.L. |title=Permian Blanket Sandstones of Colorado Plateau |journal=AAPG Special Publication Series |date=1961 |volume=22 |pages=179-207 |url=http://archives.datapages.com/data/specpubs/sandsto1/data/a055/a055/0001/0150/0179.htm |accessdate=28 April 2020}}
* {{cite web |last1=Baars |first1=D.L. |title=Permian rocks of north-central New Mexico |journal=New Mexico Geological Society Annual Fall Field Conference Guidebook Series |issue=25 |date=1974 |pages=167–169 |url=https://nmgs.nmt.edu/publications/guidebooks/downloads/25/25_p0167_p0169.pdf |accessdate=5 June 2019}}
* {{cite journal |last1=Keyes |first1=C.R. |title=Foundation of exact geologic correlation |journal=Iowa Academy of Science Proceedings |date=1915 |volume=22 |pages=249-267}}
* {{cite journal |last1=NEEDHAM |first1=C. E. |last2=BATES |first2=R. L. |title=Permian type sections in central New Mexico |journal=Geological Society of America Bulletin |date=1 November 1943 |volume=54 |issue=11 |pages=1653–1668 |doi=10.1130/GSAB-54-1653}}</ref><ref>{{cite web |last1=Various |title=Geologic Unit: Glorieta |url=https://ngmdb.usgs.gov/Geolex/UnitRefs/GlorietaRefs_8383.html |website=National Geologic Map Database |accessdate=21 May 2019}}
* {{cite journal |last1=Sakuraf |first1=Shinichi |last2=Loucks |first2=Robert G. |last3=Gardner |first3=John S. |title=Nmr Core Analysis Of Lower San Andres/Glorieta/Upper Clear Fork (Permian) Carbonates: Central Basin Platform, West Texas |journal=SPWLA Annual Logging Symposium |date=1995 |volume=36 |url=https://www.onepetro.org/conference-paper/SPWLA-1995-M |accessdate=28 April 2020}}


{{Chronostratigraphy of Colorado|Paleozoic state=expanded}}
{{Chronostratigraphy of Colorado|Paleozoic state=expanded}}

Revision as of 20:59, 11 May 2020

Glorieta Formation
Stratigraphic range: Permian
Glorieta Mesa, capped with white Glorieta Formation over reddish Yeso Group.
TypeFormation
UnderliesSan Andreas Formation
OverliesYeso Formation
Thickness81 m (maximum)
Lithology
PrimarySandstone
Location
RegionNew Mexico
CountryUnited States
Type section
Named forGlorieta Pass
Named byCharles Rollin Keyes (1915)

Outcrop map of Glorieta Formation in New Mexico.

The Glorieta Formation is a geologic formation in New Mexico. It preserves fossils characteristic of the Kungurian age of the Permian geology.

History

Keyes first named the formation in 1915.[1] It was long considered either the uppermost member of the Yeso Formation or the lowermost member of the San Andreas Formation but was promoted to independent formation status in 1943.[2]

Geology

The Glorietta Formation is exposed in most of the flanking uplifts of the Rio Grande Rift[2] and extends in the subsurface to west Texas.[3] It is a massive white cliff-forming sandstone, fine to medium grained, that weathers to reddish brown. It is particularly prominent in Glorieta Pass but extends west to the Jemez Mountains (where it pinches out in the central Nacimiento Mountains) and south to the Socorro area.[2]

The Glorieta Formation is of Kungurian age and is likely a shallow marine equivalent of the Coconino Sandstone of Arizona, from which it was separated by the Defiance uplift.[4] It is regionally uniform and shows cross stratification suggesting subaqueous deposition, except for local coastal eolian deposition.[5]

Footnotes

  1. ^ Keyes 1915
  2. ^ a b c Needham 1943
  3. ^ Sakuraf et al. 1995
  4. ^ Baars 1961
  5. ^ Baars 1974

References

  • Baars, D.L. (1961). "Permian Blanket Sandstones of Colorado Plateau". AAPG Special Publication Series. 22: 179–207. Retrieved 28 April 2020.
  • Baars, D.L. (1974). "Permian rocks of north-central New Mexico" (PDF). New Mexico Geological Society Annual Fall Field Conference Guidebook Series. pp. 167–169. Retrieved 5 June 2019.
  • Keyes, C.R. (1915). "Foundation of exact geologic correlation". Iowa Academy of Science Proceedings. 22: 249–267.
  • NEEDHAM, C. E.; BATES, R. L. (1 November 1943). "Permian type sections in central New Mexico". Geological Society of America Bulletin. 54 (11): 1653–1668. doi:10.1130/GSAB-54-1653.</ref><ref>Various. "Geologic Unit: Glorieta". National Geologic Map Database. Retrieved 21 May 2019.
  • Sakuraf, Shinichi; Loucks, Robert G.; Gardner, John S. (1995). "Nmr Core Analysis Of Lower San Andres/Glorieta/Upper Clear Fork (Permian) Carbonates: Central Basin Platform, West Texas". SPWLA Annual Logging Symposium. 36. Retrieved 28 April 2020.
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