Tectonic evolution of the Brooks Range ophiolite, northern Alaska

2004 ◽  
Vol 392 (1-4) ◽  
pp. 143-163 ◽  
Author(s):  
Ron Harris
Keyword(s):  
Tectonic Evolution ◽  
Brooks Range ◽  
Northern Alaska

Regionally metamorphosed, calc-silicate-hosted deposits of the Brooks Range, northern Alaska

1986 ◽  
Vol 81 (7) ◽  
pp. 1728-1752 ◽  
Author(s):  
R. J. Newberry ◽  
J. T. Dillon ◽  
D. D. Adams
Keyword(s):  
Brooks Range ◽  
Northern Alaska

scholarly journals Detrital geochronology of pre-Mississippian strata in the northeastern Brooks Range, Alaska: Insights into the tectonic evolution of northern Laurentia

Lithosphere ◽  
2016 ◽  
Vol 8 (6) ◽  
pp. 649-667 ◽  
Author(s):  
Benjamin G. Johnson ◽  
Justin V. Strauss ◽  
Jaime Toro ◽  
Jeff A. Benowitz ◽  
William P. Ward ◽  
...  
Keyword(s):  
Tectonic Evolution ◽  
Brooks Range

A new species of Droharhynchia (Brachiopoda) from the lower Middle Devonian (Eifelian) of west-central Alaska

1994 ◽  
Vol 68 (6) ◽  
pp. 1235-1240 ◽  
Author(s):  
Mary E. Baxter ◽  
Robert B. Blodgett
Keyword(s):  
New Species ◽  
Middle Devonian ◽  
The Arctic ◽  
Geographic Proximity ◽  
Brooks Range ◽  
West Central ◽  
Arctic Alaska ◽  
Northern Alaska ◽  
A New Species

A new species of the genus Droharhynchia Sartenaer is established from lower Eifelian strata of west-central Alaska and the northwestern Brooks Range of Alaska. Droharhynchia rzhonsnitskayae n. sp. occurs in the Cheeneetnuk Limestone of the McGrath A-5 quadrangle, west-central Alaska, and the Baird Group of the Howard Pass B-5 quadrangle, northwestern Alaska. These occurrences extend the lower biostratigraphic range of both the genus and the subfamily Hadrorhynchiinae into the Eifelian. They also suggest close geographic proximity of the Farewell terrane of southwestern and west-central Alaska and the Arctic Alaska superterrane of northern Alaska during Devonian time.

Diagenetic Barite-Pyrite-Wurtzite formation and redox signatures in Triassic Mudstone, Brooks Range, Northern Alaska

2021 ◽  
pp. 120568
Author(s):  
John F. Slack ◽  
Ryan J. McAleer ◽  
Wayne C. Shanks ◽  
Julie A. Dumoulin
Keyword(s):  
Brooks Range ◽  
Northern Alaska

scholarly journals Chronology and glass chemistry of tephra and cryptotephra horizons from lake sediments in northern Alaska, USA

2017 ◽  
Vol 88 (2) ◽  
pp. 169-178 ◽  
Author(s):  
Alistair J. Monteath ◽  
Maarten van Hardenbroek ◽  
Lauren J. Davies ◽  
Duane G. Froese ◽  
Peter G. Langdon ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Lake Sediments ◽  
Stratigraphic Correlation ◽  
Brooks Range ◽  
White River ◽  
Lake Sediment Core ◽  
Aleutian Arc ◽  
Glass Chemistry ◽  
Tephra Beds ◽  
Northern Alaska

AbstractHolocene tephrostratigraphy in Alaska provides independent chronology and stratigraphic correlation in a region where reworked old (Holocene) organic carbon can significantly distort radiocarbon chronologies. Here, we present new glass chemistry and chronology for Holocene tephras preserved in three Alaskan lakes: one in the eastern interior and two in the southern Brooks Range. Tephra beds in the eastern interior lake-sediment core are correlated with the White River Ash and the Hayes tephra set H (~4200–3700 cal yr BP), and an additional discrete tephra bed is likely from the Aleutian arc/Alaska Peninsula. Cryptotephras (nonvisible tephras) found in the Brooks Range include the informally named “Ruppert tephra” (~2700–2300 cal yr BP) and the Aniakchak caldera-forming event II (CFE II) tephra (~3600 cal yr BP). A third underlying Brooks Range cryptotephra is chemically indistinguishable from the Aniakchak CFE II tephra (4070–3760 cal yr BP) and is likely to be from an earlier eruption of the Aniakchak volcano.

Sign in / Sign up

Export Citation Format

Share Document