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NARROW
Format
Article Type
Journal
Publisher
GeoRef Subject
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all geography including DSDP/ODP Sites and Legs
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Black Mesa (1)
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Black Mesa Basin (12)
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North America
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Western Interior (1)
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San Juan Basin (5)
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United States
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Arizona
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Coconino County Arizona (1)
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Navajo County Arizona (2)
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Colorado (1)
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Colorado Plateau (1)
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Four Corners (2)
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New Mexico (5)
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Paradox Basin (1)
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Uinta Basin (1)
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commodities
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elements, isotopes
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carbon
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noble gases (1)
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fossils
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Invertebrata
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Mollusca
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Protista
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carbon
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climate change (1)
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Ammonites (1)
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Protista
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Foraminifera (1)
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isotopes
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radioactive isotopes
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C-14 (2)
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Mesozoic
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Cretaceous
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Dakota Formation (1)
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Mancos Shale (1)
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Upper Cretaceous
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Cenomanian (2)
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Jurassic (1)
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Navajo Sandstone (1)
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noble gases (1)
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North America
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Western Interior (1)
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paleoclimatology (2)
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palynomorphs
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miospores
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pollen (1)
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petroleum (5)
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Pteridophyta (1)
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sea-level changes (1)
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sedimentary rocks
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clastic rocks
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shale (1)
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sedimentation (1)
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stratigraphy (2)
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United States
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Arizona
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Coconino County Arizona (1)
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Navajo County Arizona (2)
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Colorado (1)
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Colorado Plateau (1)
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Four Corners (2)
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New Mexico (5)
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Paradox Basin (1)
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Uinta Basin (1)
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weathering (1)
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sedimentary rocks
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sedimentary rocks
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clastic rocks
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shale (1)
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GeoRef Categories
Era and Period
Epoch and Age
Date
Availability
Black Mesa Basin
Noble gas signatures of high recharge pulses and migrating jet stream in the late Pleistocene over Black Mesa, Arizona, United States
Responses of ground water in the Black Mesa basin, northeastern Arizona, to paleoclimatic changes during the late Pleistocene and Holocene
Paleoceanographic and paleoclimatic interpretations of the Mancos Shale (Upper Cretaceous), Black Mesa Basin, Arizona
The Black Mesa Basin of northeastern Arizona contains the stratigraphic record of the transgression and regression of the Greenhorn Sea during late Cenomanian to late middle Turonian time. The transgressive phase of the cycle is much thinner than the regressive phase. Foraminiferal data suggest that peak transgression of the Greenhorn Sea occurred during mid-early Turonian to earliest middle Turonian time ( Mammites nodosoides to perhaps basal Collignoniceras woollgari Biozone) in this area of the interior seaway. The Cenomanian/Turonian boundary interval is marked by dynamic changes in the population structure of planktonic foraminifera and in foraminiferal abundance. It is suggested that an oxygen minimum zone (OMZ) within the water column was established in the Black Mesa area during this time, based on the marked increase in relative abundance of Heterohelix. The OMZ gradually waned through the time of peak transgression. Clay mineral, sedimentological, and foraminiferal data suggest regional climatic warming and increased weathering accompanying the northward advance of warm, normal marine waters during transgression. Cooling, decreased intensity of chemical weathering (leaching), and a slight decrease in oceanic salinity in the Black Mesa area characterized the subsequent regression. These data are also used to reinterpret Upper Cretaceous depositional history in the Black Mesa Basin.