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The process of deformational features being reactivated throughout different stress regimes in time is excellent evidence of structural inheritance, where previously used planes of weakness are used in both shortening and extensional regimes. These examples in the
Chukchi Shelf show that structural
204:
Following the
Chukchi Sea coast, the Chukchi Corridor stretches from Point Hope, Alaska to Utqiagvik, Alaska. From winter through early summer, the area is covered in sea ice with recurring openings in the ice that allow wildlife to migrate north from the Bering Sea to areas of the Chukchi or
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region dominating petroleum production in Alaska with over 10 billion barrels of oil produced between 1977 and 2005. The stratigraphy and structural geology of the
Chukchi Shelf have been studied due to it being a potential source area of sediment that filled the North Slope basin.
229:. It is also an important hunting area for indigenous subsistence hunters. This region includes biologically important gray whale feeding and reproduction habitats Many bird species navigate the Chukchi Corridor to migrate to the North Slope for summer breeding
443:
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inheritance can survive multiple deformational events through hundreds of millions of years. These concepts play a role in petroleum exploration since deformational planes of weakness can create or destroy
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342:
to create the Hanna Trough. These normal faults were then again reactivated as thrust faults in the southern shelf in the
Jurassic, and reactivated as normal faults again in the early Cenozoic.
431:"Chukchi Offshore Monitoring In Drilling Area (COMIDA): Factors Affecting the Distribution and Relative Abundance of Endangered Whales and Other Marine Mammals in the Chukchi Sea"
298:, permanently withdrew the waters 3 to 25 miles offshore from future oil and gas leasing activities. This action leaves the valuable waters 25 to 50 miles offshore unprotected.
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time. The structural deformation features of the shelf have been reactivated at least four different times, from thin-skinned crustal shortening creating a
662:
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is a 50-mile wide strip of ocean offshore of
Northwest Alaska that acts as a passageway for one of the largest marine mammal migrations in the world.
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reflection data in the
Chukchi Shelf have shown that the structural history of the shelf is complex with multiple events of deformation from the
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Currently, part of the corridor is protected from oil and gas activities. On
January 27, 2015, President Obama, using his authorities under the
534:"Presidential Memorandum -- Withdrawal of Certain Areas of the United States Outer Continental Shelf Offshore Alaska from Leasing Disposition"
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393:
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The
Chukchi Shelf and surrounding regions have a recent history of petroleum production and exploration, with development of the nearby
124:. Within this shelf, the 50-mile Chukchi Corridor acts as a passageway for one of the largest marine mammal migrations in the world.
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521:"Endangered and Threatened Wildlife and Plants; Final Determination of Critical Habitat for the Spectacled Eider; Final Rule"
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National
Petroleum Reserve in Alaska Working Group, , U.S. Department of the Interior, 1979. Retrieved 16-09-2016.
416:, Coastal Marine Institute and US Department of Interior, Minerals Management Service, 2005. Retrieved 16-09-2016.
407:"Distribution and Movements of Beluga Whales from the Eastern Chukchi Sea Stock During Summer and Early Autumn"
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As a region with substantial seafloor productivity, the
Chukchi Corridor is an important nursery habitat for
381:"Mapping and Characterization of Recurring Spring Leads and Landfast Ice in the Beaufort and Chukchi Seas"
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The Chukchi Corridor is an extremely important region for subsistence hunting for the communities of
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433:, Bureau of Ocean Energy Management Outer Continental Shelf Study, 2015. Retrieved 16-09-2016.
396:, Bureau of Ocean Energy Management Outer Continental Shelf Study, 2013. Retrieved 16-09-2016.
486:"Ecological studies of Arctic cod (Boreogadus saida) in Beaufort Sea coastal waters, Alaska"
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368:"Structure of Hanna Trough and Facies of Ellesmerian Sequence, U.S. Chukchi Shelf, Alaska"
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536:, Office of the Press Secretary, The White House, 27-01-2015. Retrieved 16-09-2016.
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rely extensively on areas in the Chukchi Corridor for hunting throughout the year.
457:"Monitoring Marine Birds of Concern in the Eastern Chukchi Nearshore Area (Loons)"
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The Chukchi Sea coastline serves as an essential corridor for marine mammals like
523:, U.S. Department of Interior Federal Register, 06-02-2001. Retrieved 19-09-2016.
488:, Canadian Journal of Fisheries and Aquatic Sciences, 1982. Retrieved 16-09-2016.
426:
413:
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444:" Biologically important areas for cetaceans within U.S. waters - Arctic Region"
394:"Satellite tracking of bowhead whales: Movements and analysis from 2006 to 2012"
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designated areas along the entire Chukchi coast out to 15–30 miles offshore as
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473:"Fishery Management Plan for Fish Resources of the Arctic Management Area"
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475:, North Pacific Fishery Management Council, 2009. Retrieved 16-09-2016.
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244:. Saffron and Arctic cod are critical to the Arctic marine food web.
499:"Preliminary mass-balance food web model of the eastern Chukchi Sea"
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Connors, Christopher D.; Houseknecht, David W. (September 2022).
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Connors, Christopher D.; Houseknecht, David W. (September 2022).
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A Season of Abundance: Spring and Summer in the Chukchi Corridor
501:, National Marine Fisheries Service, 2013. Retrieved 16-09-2016.
459:, United States Geological Service, 2012. Retrieved 16-09-2016.
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161:. To the north of Alaska the Chukchi Shelf extends to form the
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Eicken H., L. Shapiro, A. Gaylord, A. Mahoney, and P. Cotter,
383:, US Department of the Interior, 2005. Retrieved 16-09-2016.
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The main geological features of the Chukchi Shelf are the
484:
Craig P., Griffiths B., Haldorson L., and McElderry H.,
620:"Structural inheritance in the Chukchi shelf, Alaska"
579:"Structural inheritance in the Chukchi shelf, Alaska"
442:
Clarke J., Ferguson M., Curtice C., and Harrison J.,
429:, J. Napp, B. Rone, A. Spear, M. Wang, and C. Clark,
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and the easternmost part of the continental shelf of
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Location of the Chukchi Sea Shelf in the Arctic Ocean
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287:designated Ledyard Bay as critical habitat for
446:, Aquatic Mammals, 2015. Retrieved 16-09-2016.
425:Berchok C., J. Crance, E. Garlan, J. Mocklin,
205:Beaufort seas during spring and early summer
350:depending on the surrounding stratigraphy.
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471:North Pacific Fishery Management Council,
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120:. In the west it merges with the Russian
80:Learn how and when to remove this message
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43:This article includes a list of general
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392:Quakenbush L., R. Small, and J. Citta
370:, Geological Society of America, 2006.
700:Continental shelves of North America
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330:in the Devonian, to reactivation of
283:(EFH) for saffron cod. In 2001, the
182:USSR–USA Maritime Boundary Agreement
172:The Chukchi Shelf is shared between
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405:Suydam R., F. Lowry, and K. Frost,
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685:Bodies of water of the Chukchi Sea
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49:it lacks sufficient corresponding
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296:Outer Continental Shelf Lands Act
277:National Marine Fisheries Service
338:during crustal extension in the
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645:10.1016/j.marpetgeo.2022.105812
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690:Continental shelves of Russia
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135:, a basement uplift cored by
624:Marine and Petroleum Geology
583:Marine and Petroleum Geology
455:Schmutz J., and Rizzolo D.,
268:, Alaska. Studies show that
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142:. The latter is named after
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180:according to the June 1990
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695:Bodies of water of Alaska
165:which protrudes into the
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188:50-Mile Chukchi Corridor
146:. Off the northwestern
64:more precise citations.
281:Essential Fish Habitat
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328:fold and thrust belt
636:2022MarPG.14305812C
595:2022MarPG.14305812C
412:2016-06-23 at the
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547:"Wayback Machine"
289:spectacled eiders
169:geological zone.
150:coast there is a
110:continental shelf
106:Chukchi Sea Shelf
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308:North Slope
242:Saffron cod
234:forage fish
62:introducing
674:Categories
630:: 105812.
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563:2024-03-06
532:Obama, B.
427:P. Stabeno
354:References
254:Point Hope
248:Importance
238:Arctic cod
236:species,
155:rift basin
137:Cretaceous
129:Hope Basin
70:April 2009
45:references
266:Utqiagvik
262:Wainright
258:Point Lay
200:Geography
410:Archived
340:Jurassic
324:Cenozoic
322:through
320:Devonian
176:and the
152:Jurassic
131:and the
632:Bibcode
591:Bibcode
316:seismic
302:Geology
270:Inupiaq
148:Alaskan
112:of the
58:improve
264:, and
240:, and
225:, and
174:Russia
157:, the
118:Russia
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209:Fauna
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
