ABSTRACT: We analyzed detrital zircons in seven samples of metasedimentary rock from north-central Idaho, U.S.A., to test the previous assignment of these rocks to the Mesoproterozoic Belt–Purcell Supergroup. Correlating these rocks with known sedimentary units through field observations is difficult if not impossible due to the high metamorphic grade (amphibolite facies) and intensity of deformation. Zircon analysis by laser-ablation inductively coupled plasma mass spectrometry (LA-ICPMS) reveals that five of the seven samples contain multiple zircon populations between 1700 and 1400 Ma and a scatter of Paleoproterozoic and Archean ages, similar to results reported from the Belt Supergroup to the north and east. These results indicate that...
Volcanic and diamictite-bearing strata of the Neoproterozoic Pocatello Formation record middle Cryog...
Zircons from quartzo-feldspathic gneiss within the Precambrian (\u3e725 Ma) siliciclastics of the Ho...
A non-North American provenance for the lower Belt Supergroup of North America has been used to supp...
ABSTRACT: We analyzed detrital zircons in seven samples of metasedimentary rock from north-central I...
We analyzed detrital zircons in seven samples of metasedimentary rock from north-central Idaho, U.S....
The House Mountain gneiss complex is a ~100 km2 exposure of middle to upper amphibolite facies ortho...
Recent geochronologic and metamorphic data from the Freezeout Ridge area, northern Idaho, reevaluate...
Three stratigraphically well defined rocks from the glaciogenic Scout Mountain Member, Neoproterozoi...
New in situ U-Pb zircon geochronology delineates a series of rock suites with distinct ages and comp...
This study is focused on determining the depositional ages of geologic formations above and below th...
The northeastern portion of the Idaho batholith (NIB) intruded Proterozoic rocks of the Belt-Purcell...
Neoproterozoic sedimentary successions contain evidence for some of the most extreme climate fluctua...
Stratigraphic, geochronologic, and geochemical patterns of Neoproterozoic to Cambrian sedimentary an...
Located predominantly in NW Montana, the intracratonic Belt basin was the depositional site of the P...
The Clearwater metamorphic core complex (CMCC) in northern Idaho is one of several core complexes in...
Volcanic and diamictite-bearing strata of the Neoproterozoic Pocatello Formation record middle Cryog...
Zircons from quartzo-feldspathic gneiss within the Precambrian (\u3e725 Ma) siliciclastics of the Ho...
A non-North American provenance for the lower Belt Supergroup of North America has been used to supp...
ABSTRACT: We analyzed detrital zircons in seven samples of metasedimentary rock from north-central I...
We analyzed detrital zircons in seven samples of metasedimentary rock from north-central Idaho, U.S....
The House Mountain gneiss complex is a ~100 km2 exposure of middle to upper amphibolite facies ortho...
Recent geochronologic and metamorphic data from the Freezeout Ridge area, northern Idaho, reevaluate...
Three stratigraphically well defined rocks from the glaciogenic Scout Mountain Member, Neoproterozoi...
New in situ U-Pb zircon geochronology delineates a series of rock suites with distinct ages and comp...
This study is focused on determining the depositional ages of geologic formations above and below th...
The northeastern portion of the Idaho batholith (NIB) intruded Proterozoic rocks of the Belt-Purcell...
Neoproterozoic sedimentary successions contain evidence for some of the most extreme climate fluctua...
Stratigraphic, geochronologic, and geochemical patterns of Neoproterozoic to Cambrian sedimentary an...
Located predominantly in NW Montana, the intracratonic Belt basin was the depositional site of the P...
The Clearwater metamorphic core complex (CMCC) in northern Idaho is one of several core complexes in...
Volcanic and diamictite-bearing strata of the Neoproterozoic Pocatello Formation record middle Cryog...
Zircons from quartzo-feldspathic gneiss within the Precambrian (\u3e725 Ma) siliciclastics of the Ho...
A non-North American provenance for the lower Belt Supergroup of North America has been used to supp...