Paul Link | Idaho State University (original) (raw)
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Papers by Paul Link
Abstracts with programs, 2021
Abstracts with programs, 2020
Abstracts with programs, 2020
Geological Society of America eBooks, 1993
Publication of this volume, one of the synthesis volumes of The Decade of North American Geology ... more Publication of this volume, one of the synthesis volumes of The Decade of North American Geology Project series, has been made possible by members and friends of the Geological Society of America, corporations, and government agencies through contributions to the Decade of North American Geology fund of the Geological Society of America Foundation.
Western North American Naturalist, Dec 31, 2022
Abstracts with programs, 2022
Precambrian Research, Oct 1, 2022
GSA 2020 Connects Online, 2020
GSA Annual Meeting in Phoenix, Arizona, USA - 2019, 2019
Abstracts with programs, 2018
GSA Annual Meeting in Seattle, Washington, USA - 2017, 2017
GSA Annual Meeting in Seattle, Washington, USA - 2017, 2017
Encyclopedia of earth sciences, Jan 19, 2009
Geological Society of America Abstracts with Programs, 2017
Ghost-dune hollows on the eastern Snake River Plain (ESRP), Idaho, USA, are topographically inver... more Ghost-dune hollows on the eastern Snake River Plain (ESRP), Idaho, USA, are topographically inverted, crescent-shaped depressions that record the partial encasement of sand dunes by ca. 61 ka basalt lava flows. Deflation of these "ghost" sand dunes produced approximately two dozen, 5-10-m-deep ghost-dune hollows now incompletely filled with pedogenically altered eolian and colluvial sediment. Optically stimulated luminescence (OSL) and 40 Ar/ 39 Ar ages constrain a ghost-dune hollow model that illuminates the late Pleistocene to Holocene environmental and climate history of the ESRP. Detrital zircon analyses indicate sand-dune supply routes changed following the burial of Pleistocene Henrys Fork (tributary of the Snake River) alluvium by ca. 70 ka basalt flows. Removal of Henrys Fork alluvium from the eolian supply system made Lake Terreton sediment the primary source for later ESRP sand dunes. Such sediment supply changes highlight the potential impacts of effusive volcanism on sand-dune histories and landscapes. Our results support stratigraphic and sedimentary modeling of comparable ghost-dune "pit" deposits older than ca. 2 Ga on Mars that may have served as refugia for early life on that planet. Analogous ancient ghost-dune hollow deposits on Earth may also have served as early life refugia.
Geosphere, May 10, 2017
The gneiss complex of Wildhorse Creek (Wildhorse gneiss) forms the central component of the lowes... more The gneiss complex of Wildhorse Creek (Wildhorse gneiss) forms the central component of the lowest structural plate in the Pioneer metamorphic core complex of south-central Idaho. The oldest rock in the complex is a felsic ortho gneiss, with Neoarchean U-Pb magmatic zircon ages of 2.60-2.67 Ga. The ortho gneiss overlaps in age and is interpreted to be part of the Grouse Creek block of the Albion Mountains to the south. This Archean metagranitoid is structurally interleaved with paragneiss containing quartzite and calc-silicate rock. Structurally below the orthogneiss, some quartzites have multiple concordant populations of detrital-zircon grains as young as ca. 1700 Ma, while others have no zircon grains younger than ca. 2500 Ma. Structurally above the Archean gneiss is a heterogeneous paragneiss that contains calc-silicate and quartzitic rocks with detrital zircons as young as ca. 1460 Ma. Amphibolite in this unit contains zircons dated at ca. 1850 Ma, indicating that this rock can be no older than that and implying considerable structural complexity. The upper part of the Wildhorse gneiss contains metaquartzites bearing zircons as young as ca. 1400 Ma. The protolith of this paragneiss is interpreted as the southernmost exposures of the Lemhi subbasin of the Mesoproterozoic Belt Supergroup. The upper Wildhorse gneiss includes ca. 695 Ma intrusive orthogneiss that is coeval with Neoproterozoic rift-related volcanic or intrusive rocks near Pocatello, House Mountain, and Edwardsburg, Idaho. This Cryogenian meta-intrusive rock is the likely source of the 650-710 Ma detrital-zircon population in the Big Lost River that drains the core complex. Initial εHf values from 675 Ma zircons are between 3.4 and-2.4, suggesting the granitoids had a mixed source in both continental crust and juvenile mantle. PRECAMBRIAN BASEMENT IN THE NORTHERN ROCKIES North of the Snake River Plain, Precambrian metamorphic basement is exposed in the Pioneer Mountains and in isolated areas within the Atlanta lobe of the Idaho batholith to the southwest (Fig. 1 inset) (O'Neill and Pavlis, 1988;
GSA Annual Meeting in Denver, Colorado, USA - 2016, 2016
Geological Society of America Memoirs, 1992
Abstracts with programs, 2021
Abstracts with programs, 2020
Abstracts with programs, 2020
Geological Society of America eBooks, 1993
Publication of this volume, one of the synthesis volumes of The Decade of North American Geology ... more Publication of this volume, one of the synthesis volumes of The Decade of North American Geology Project series, has been made possible by members and friends of the Geological Society of America, corporations, and government agencies through contributions to the Decade of North American Geology fund of the Geological Society of America Foundation.
Western North American Naturalist, Dec 31, 2022
Abstracts with programs, 2022
Precambrian Research, Oct 1, 2022
GSA 2020 Connects Online, 2020
GSA Annual Meeting in Phoenix, Arizona, USA - 2019, 2019
Abstracts with programs, 2018
GSA Annual Meeting in Seattle, Washington, USA - 2017, 2017
GSA Annual Meeting in Seattle, Washington, USA - 2017, 2017
Encyclopedia of earth sciences, Jan 19, 2009
Geological Society of America Abstracts with Programs, 2017
Ghost-dune hollows on the eastern Snake River Plain (ESRP), Idaho, USA, are topographically inver... more Ghost-dune hollows on the eastern Snake River Plain (ESRP), Idaho, USA, are topographically inverted, crescent-shaped depressions that record the partial encasement of sand dunes by ca. 61 ka basalt lava flows. Deflation of these "ghost" sand dunes produced approximately two dozen, 5-10-m-deep ghost-dune hollows now incompletely filled with pedogenically altered eolian and colluvial sediment. Optically stimulated luminescence (OSL) and 40 Ar/ 39 Ar ages constrain a ghost-dune hollow model that illuminates the late Pleistocene to Holocene environmental and climate history of the ESRP. Detrital zircon analyses indicate sand-dune supply routes changed following the burial of Pleistocene Henrys Fork (tributary of the Snake River) alluvium by ca. 70 ka basalt flows. Removal of Henrys Fork alluvium from the eolian supply system made Lake Terreton sediment the primary source for later ESRP sand dunes. Such sediment supply changes highlight the potential impacts of effusive volcanism on sand-dune histories and landscapes. Our results support stratigraphic and sedimentary modeling of comparable ghost-dune "pit" deposits older than ca. 2 Ga on Mars that may have served as refugia for early life on that planet. Analogous ancient ghost-dune hollow deposits on Earth may also have served as early life refugia.
Geosphere, May 10, 2017
The gneiss complex of Wildhorse Creek (Wildhorse gneiss) forms the central component of the lowes... more The gneiss complex of Wildhorse Creek (Wildhorse gneiss) forms the central component of the lowest structural plate in the Pioneer metamorphic core complex of south-central Idaho. The oldest rock in the complex is a felsic ortho gneiss, with Neoarchean U-Pb magmatic zircon ages of 2.60-2.67 Ga. The ortho gneiss overlaps in age and is interpreted to be part of the Grouse Creek block of the Albion Mountains to the south. This Archean metagranitoid is structurally interleaved with paragneiss containing quartzite and calc-silicate rock. Structurally below the orthogneiss, some quartzites have multiple concordant populations of detrital-zircon grains as young as ca. 1700 Ma, while others have no zircon grains younger than ca. 2500 Ma. Structurally above the Archean gneiss is a heterogeneous paragneiss that contains calc-silicate and quartzitic rocks with detrital zircons as young as ca. 1460 Ma. Amphibolite in this unit contains zircons dated at ca. 1850 Ma, indicating that this rock can be no older than that and implying considerable structural complexity. The upper part of the Wildhorse gneiss contains metaquartzites bearing zircons as young as ca. 1400 Ma. The protolith of this paragneiss is interpreted as the southernmost exposures of the Lemhi subbasin of the Mesoproterozoic Belt Supergroup. The upper Wildhorse gneiss includes ca. 695 Ma intrusive orthogneiss that is coeval with Neoproterozoic rift-related volcanic or intrusive rocks near Pocatello, House Mountain, and Edwardsburg, Idaho. This Cryogenian meta-intrusive rock is the likely source of the 650-710 Ma detrital-zircon population in the Big Lost River that drains the core complex. Initial εHf values from 675 Ma zircons are between 3.4 and-2.4, suggesting the granitoids had a mixed source in both continental crust and juvenile mantle. PRECAMBRIAN BASEMENT IN THE NORTHERN ROCKIES North of the Snake River Plain, Precambrian metamorphic basement is exposed in the Pioneer Mountains and in isolated areas within the Atlanta lobe of the Idaho batholith to the southwest (Fig. 1 inset) (O'Neill and Pavlis, 1988;
GSA Annual Meeting in Denver, Colorado, USA - 2016, 2016
Geological Society of America Memoirs, 1992