Bass Formation
The Bass Formation, also known as the Bass Limestone, is a Mesoproterozoic rock formation that outcrops in the eastern Grand Canyon, Coconino County, Arizona. The Bass Formation erodes as either cliffs or stair-stepped cliffs. In the case of the stair-stepped topography, resistant dolomite layers form risers and argillite layers form steep treads. In general, the Bass Formation and associated strata of the Unkar Group rocks dip northeast (10°-30°) toward normal faults that dip 60+° toward the southwest. This can be seen at the Palisades fault in the eastern part of the main Unkar Group outcrop area (below East Rim). In addition, thick, prominent, and dark-colored basaltic sills intrude across the Bass Formation.
Bass Formation
The Bass Formation, also known as the Bass Limestone, is a Mesoproterozoic rock formation that outcrops in the eastern Grand Canyon, Coconino County, Arizona. The Bass Formation erodes as either cliffs or stair-stepped cliffs. In the case of the stair-stepped topography, resistant dolomite layers form risers and argillite layers form steep treads. In general, the Bass Formation and associated strata of the Unkar Group rocks dip northeast (10°-30°) toward normal faults that dip 60+° toward the southwest. This can be seen at the Palisades fault in the eastern part of the main Unkar Group outcrop area (below East Rim). In addition, thick, prominent, and dark-colored basaltic sills intrude across the Bass Formation.
has abstract
Die Baiss-Formation ist ein ge ...... n Jahren BP abgelagert worden.
@de
The Bass Formation, also known ...... member where it has remained.
@en
Link from a Wikipage to an external page
Wikipage page ID
38,150,001
Wikipage revision ID
743,049,980
age
Meso-Proterozoic, 1,250 Ma
country
namedfor
otherlithology
sandstone, conglomerate, argillite, and limestone
overlies
Vishnu Basement Rocks on major erosion unconformity
period
Mesoproterozoic
prilithology
region
Arizona, Grand Canyon
Isis Temple region, southwest ...... orge, and along Colorado River
subunits
Hotauta Member
underlies
unitof
subject
hypernym
type
comment
Die Baiss-Formation ist ein ge ...... n Jahren BP abgelagert worden.
@de
The Bass Formation, also known ...... ude across the Bass Formation.
@en
label
Bass Formation
@en
Bass-Formation
@de
