{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/86522"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/86522","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Origin, Architecture, and Thermal State of the Lackawanna Synclinorium, Pennsylvania: Implications for Tectonic Evolution of the Central Appalachians","abstract":"Mapping of the Pittston quadrangle in the central domain and structural analysis elsewhere in the synclinorium reveal that mesoscopic faults, folds, and cleavage throughout the synclinorium trend ∼075°; thus, these structures parallel the southern domain, but trend at high angles to the northern domain. Many of these structures are better developed in the hanging wall of a regional detachment than in the footwall. Crosscutting structures (e.g., cleavage, faults) indicate that the shortening direction rotated ∼45° clockwise during the Alleghanian orogeny. Heat-flow calculations suggest that the migration of hot (∼270°C) brines could have induced anthracitization at shallow depths (≤5 km) in the synclinorium; thus, deep burial (6--9 km) by post-Pennsylvanian strata was not required for anthracitization. Field observations, fluid-inclusion studies, and illite-crystallinity analysis suggest that Alleghanian fluid flow was stratigraphically controlled.","abstract_html":"Mapping of the Pittston quadrangle in the central domain and structural analysis elsewhere in the synclinorium reveal that mesoscopic faults, folds, and cleavage throughout the synclinorium trend ∼075°; thus, these structures parallel the southern domain, but trend at high angles to the northern domain. Many of these structures are better developed in the hanging wall of a regional detachment than in the footwall. Crosscutting structures (e.g., cleavage, faults) indicate that the shortening direction rotated ∼45° clockwise during the Alleghanian orogeny. Heat-flow calculations suggest that the migration of hot (∼270°C) brines could have induced anthracitization at shallow depths (≤5 km) in the synclinorium; thus, deep burial (6--9 km) by post-Pennsylvanian strata was not required for anthracitization. Field observations, fluid-inclusion studies, and illite-crystallinity analysis suggest that Alleghanian fluid flow was stratigraphically controlled.","abstract_has_math":false,"creators":["Harrison, Michael Joseph"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Geology","degree_department":null,"school":null,"contributors":["Marshak, Stephen"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2015,"date_issued":"2015-09-28T15:12:27Z","date_published":"2015-09-28T15:12:27Z","updated_at":"2026-07-22T22:26:27Z","subjects":["Geology"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["(MiAaPQ)AAI3070319"],"render_values":[{"text":"(MiAaPQ)AAI3070319","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/86522","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Marshak, Stephen"]},{"key":"dc:creator","label":"Author","values":["Harrison, Michael Joseph"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2015-09-28T15:12:27Z","10000-01-01","2002"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Geology"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Geology"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["eng"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/86522","(MiAaPQ)AAI3070319"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Mapping of the Pittston quadrangle in the central domain and structural analysis elsewhere in the synclinorium reveal that mesoscopic faults, folds, and cleavage throughout the synclinorium trend ∼075°; thus, these structures parallel the southern domain, but trend at high angles to the northern domain. Many of these structures are better developed in the hanging wall of a regional detachment than in the footwall. Crosscutting structures (e.g., cleavage, faults) indicate that the shortening direction rotated ∼45° clockwise during the Alleghanian orogeny. Heat-flow calculations suggest that the migration of hot (∼270°C) brines could have induced anthracitization at shallow depths (≤5 km) in the synclinorium; thus, deep burial (6--9 km) by post-Pennsylvanian strata was not required for anthracitization. Field observations, fluid-inclusion studies, and illite-crystallinity analysis suggest that Alleghanian fluid flow was stratigraphically controlled.","Made available in DSpace on 2015-09-28T15:12:27Z (GMT). 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Many of these structures are better developed in the hanging wall of a regional detachment than in the footwall. Crosscutting structures (e.g., cleavage, faults) indicate that the shortening direction rotated ∼45° clockwise during the Alleghanian orogeny. Heat-flow calculations suggest that the migration of hot (∼270°C) brines could have induced anthracitization at shallow depths (≤5 km) in the synclinorium; thus, deep burial (6--9 km) by post-Pennsylvanian strata was not required for anthracitization. Field observations, fluid-inclusion studies, and illite-crystallinity analysis suggest that Alleghanian fluid flow was stratigraphically controlled.","Made available in DSpace on 2015-09-28T15:12:27Z (GMT). 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