{"id":{"repo_id":"houston","oai_identifier":"oai:uh-ir.tdl.org:10657/21505"},"canonical_url":"https://search.dev.ndltd.org/etd/houston/oai:uh-ir.tdl.org:10657/21505","repository":{"repo_id":"houston","name":"University of Houston","base_url":"https://uh-ir.tdl.org/server/oai/request"},"display":{"title":"Late Cretaceous-Cenozoic Accretionary History of Volcanic Arcs and the Bering Oceanic Plateau in the Northwestern in Alaska and Northeastern Russia Constrained by Integration of Geologic, Geophysical, and Radiometric Data","abstract":"The political division of the northern Pacific plate margin between northeastern Asia in Russia, the Bering Sea, and Alaska and the Aleutian Islands in the USA has slowed the tectonic understanding of this vast, 9,100,000 km2 region. In this study I have compiled geologic, gravity, magnetic, seismic reflection, well logs, heat flow, and radiometric data from on land and submarine crustal provinces of Russia and the USA to define the progressive, Cretaceous-Cenozoic collisional events that have shaped northern margin of the Pacific Plate. These crustal provinces include: 1) Precambrian cratons of northeast Russia and Alaska that act as continental backstops; 2) Cretaceous (96-67 Ma) Okhotsk Andean-style arc that formed along the southern edge of craton and its southward-facing accretionary belt and can be traced from Russia into the southern, accreted terranes of Alaska; 3) Paleogene (55-44 Ma) Olyutorsky intraoceanic arc that can be traced from Kamchatka along the northern and eastern margins of the Bering Sea; 4) the Cretaceous-Eocene (75-44 Ma) Bering oceanic plateau with a 13-17-km-thick crust that collided with Russia at the Koryak Range, terminated magmatism along the Olyutorsky arc at 44 Ma, indented the Alaskan margin along the right-lateral East Bering Sea fault zone, and resulted in a 1200-km southward migration of the plate boundary to the presently active Aleutian volcanic arc. I attribute the prominent bend in the Hawaiian-Emperor seamount chain at 44 Ma to a major change in Pacific plate motion triggered by the accretion of the Olyutorsky arc and Bering oceanic plateau.","abstract_html":"The political division of the northern Pacific plate margin between northeastern Asia in Russia, the Bering Sea, and Alaska and the Aleutian Islands in the USA has slowed the tectonic understanding of this vast, 9,100,000 km2 region. In this study I have compiled geologic, gravity, magnetic, seismic reflection, well logs, heat flow, and radiometric data from on land and submarine crustal provinces of Russia and the USA to define the progressive, Cretaceous-Cenozoic collisional events that have shaped northern margin of the Pacific Plate. These crustal provinces include: 1) Precambrian cratons of northeast Russia and Alaska that act as continental backstops; 2) Cretaceous (96-67 Ma) Okhotsk Andean-style arc that formed along the southern edge of craton and its southward-facing accretionary belt and can be traced from Russia into the southern, accreted terranes of Alaska; 3) Paleogene (55-44 Ma) Olyutorsky intraoceanic arc that can be traced from Kamchatka along the northern and eastern margins of the Bering Sea; 4) the Cretaceous-Eocene (75-44 Ma) Bering oceanic plateau with a 13-17-km-thick crust that collided with Russia at the Koryak Range, terminated magmatism along the Olyutorsky arc at 44 Ma, indented the Alaskan margin along the right-lateral East Bering Sea fault zone, and resulted in a 1200-km southward migration of the plate boundary to the presently active Aleutian volcanic arc. I attribute the prominent bend in the Hawaiian-Emperor seamount chain at 44 Ma to a major change in Pacific plate motion triggered by the accretion of the Olyutorsky arc and Bering oceanic plateau.","abstract_has_math":false,"creators":["Ruiz Toro, Estefani Diana 1998-"],"institution":"University of Houston","degree_name":"Master of Science","degree_level":null,"degree_discipline":"Geology","degree_department":null,"school":null,"contributors":[],"advisors":["Mann, Paul"],"committee_chairs":[],"committee_members":["Suppe, John","Heinlein, Sarah N."],"year":2026,"date_issued":"2026-05","date_published":"2026-05","updated_at":"2026-07-24T02:31:52Z","subjects":["Bering Sea","Crustal structure","Tectonics","Gravity","Magnetics"],"languages":["English"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://hdl.handle.net/10657/21505","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Mann, Paul"]},{"key":"dc:contributor.committeemember","label":"Committee Member","values":["Suppe, John","Heinlein, Sarah N."]},{"key":"dc:creator","label":"Author","values":["Ruiz Toro, Estefani Diana 1998-"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2026-07-13T21:05:38Z"]},{"key":"dc:date.issued","label":"Date","values":["2026-05"]},{"key":"dc:type","label":"Dc Type","values":["Thesis"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Geology"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science"]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Houston"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Bering Sea","Crustal structure","Tectonics","Gravity","Magnetics"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language.iso","label":"Language (ISO)","values":["English"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["https://hdl.handle.net/10657/21505"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["The political division of the northern Pacific plate margin between northeastern Asia in Russia, the Bering Sea, and Alaska and the Aleutian Islands in the USA has slowed the tectonic understanding of this vast, 9,100,000 km2 region. In this study I have compiled geologic, gravity, magnetic, seismic reflection, well logs, heat flow, and radiometric data from on land and submarine crustal provinces of Russia and the USA to define the progressive, Cretaceous-Cenozoic collisional events that have shaped northern margin of the Pacific Plate. These crustal provinces include: 1) Precambrian cratons of northeast Russia and Alaska that act as continental backstops; 2) Cretaceous (96-67 Ma) Okhotsk Andean-style arc that formed along the southern edge of craton and its southward-facing accretionary belt and can be traced from Russia into the southern, accreted terranes of Alaska; 3) Paleogene (55-44 Ma) Olyutorsky intraoceanic arc that can be traced from Kamchatka along the northern and eastern margins of the Bering Sea; 4) the Cretaceous-Eocene (75-44 Ma) Bering oceanic plateau with a 13-17-km-thick crust that collided with Russia at the Koryak Range, terminated magmatism along the Olyutorsky arc at 44 Ma, indented the Alaskan margin along the right-lateral East Bering Sea fault zone, and resulted in a 1200-km southward migration of the plate boundary to the presently active Aleutian volcanic arc. I attribute the prominent bend in the Hawaiian-Emperor seamount chain at 44 Ma to a major change in Pacific plate motion triggered by the accretion of the Olyutorsky arc and Bering oceanic plateau."]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Late Cretaceous-Cenozoic Accretionary History of Volcanic Arcs and the Bering Oceanic Plateau in the Northwestern in Alaska and Northeastern Russia Constrained by Integration of Geologic, Geophysical, and Radiometric Data"]}]}],"canonical_facts":{"dc:contributor.advisor":["Mann, Paul"],"dc:contributor.committeemember":["Suppe, John","Heinlein, Sarah N."],"dc:creator":["Ruiz Toro, Estefani Diana 1998-"],"dc:date.accessioned":["2026-07-13T21:05:38Z"],"dc:date.issued":["2026-05"],"dc:description.abstract":["The political division of the northern Pacific plate margin between northeastern Asia in Russia, the Bering Sea, and Alaska and the Aleutian Islands in the USA has slowed the tectonic understanding of this vast, 9,100,000 km2 region. In this study I have compiled geologic, gravity, magnetic, seismic reflection, well logs, heat flow, and radiometric data from on land and submarine crustal provinces of Russia and the USA to define the progressive, Cretaceous-Cenozoic collisional events that have shaped northern margin of the Pacific Plate. These crustal provinces include: 1) Precambrian cratons of northeast Russia and Alaska that act as continental backstops; 2) Cretaceous (96-67 Ma) Okhotsk Andean-style arc that formed along the southern edge of craton and its southward-facing accretionary belt and can be traced from Russia into the southern, accreted terranes of Alaska; 3) Paleogene (55-44 Ma) Olyutorsky intraoceanic arc that can be traced from Kamchatka along the northern and eastern margins of the Bering Sea; 4) the Cretaceous-Eocene (75-44 Ma) Bering oceanic plateau with a 13-17-km-thick crust that collided with Russia at the Koryak Range, terminated magmatism along the Olyutorsky arc at 44 Ma, indented the Alaskan margin along the right-lateral East Bering Sea fault zone, and resulted in a 1200-km southward migration of the plate boundary to the presently active Aleutian volcanic arc. I attribute the prominent bend in the Hawaiian-Emperor seamount chain at 44 Ma to a major change in Pacific plate motion triggered by the accretion of the Olyutorsky arc and Bering oceanic plateau."],"dc:format.mimetype":["application/pdf"],"dc:identifier.uri":["https://hdl.handle.net/10657/21505"],"dc:language.iso":["English"],"dc:subject":["Bering Sea","Crustal structure","Tectonics","Gravity","Magnetics"],"dc:title":["Late Cretaceous-Cenozoic Accretionary History of Volcanic Arcs and the Bering Oceanic Plateau in the Northwestern in Alaska and Northeastern Russia Constrained by Integration of Geologic, Geophysical, and Radiometric Data"],"dc:type":["Thesis"],"thesis:degree_discipline":["Geology"],"thesis:degree_name":["Master of Science"],"thesis:institution_name":["University of Houston"]},"updated_at":"2026-07-24T02:31:52Z"}