{"id":{"repo_id":"brock","oai_identifier":"oai:brocku.scholaris.ca:10464/14110"},"canonical_url":"https://search.dev.ndltd.org/etd/brock/oai:brocku.scholaris.ca:10464/14110","repository":{"repo_id":"brock","name":"Brock University","base_url":"https://brocku.scholaris.ca/server/oai/request"},"display":{"title":"North Gale Landform and the Volcanic Sources of Sediment in Gale Crater Mars","abstract":"An investigation into the origins of a previously unidentified landform north of Gale Crater, Mars (North Gale Landform, NGL) using remotely sensed datasets and morphological mapping has determined that it is a volcanic construct that collapsed and produced a hummocky terrain deposit to the south. Volcaniclastic sediments have been detected in the sedimentary rocks of Gale Crater by APXS. They can be grouped into distinct classes: Jake_M and Bathurst_Inlet. Jake_M are float rocks and cobbles made of igneous sediments with evolved, alkaline compositions and pitted, dusty surfaces. Bathurst_Inlet are least altered potassic basaltic sediments in siltstone sandstone to matrix-supported conglomerates. Simple petrologic models demonstrate there is a need for more than one distinct crystalline source. Bathurst_Inlet class targets are not mantle melts and Jake_M class targets are not differentiated from Bathurst_Inlet or Adirondack. NGL may be one source for the volcaniclastic sediments in Gale Crater.","abstract_html":"An investigation into the origins of a previously unidentified landform north of Gale Crater, Mars (North Gale Landform, NGL) using remotely sensed datasets and morphological mapping has determined that it is a volcanic construct that collapsed and produced a hummocky terrain deposit to the south. Volcaniclastic sediments have been detected in the sedimentary rocks of Gale Crater by APXS. They can be grouped into distinct classes: Jake_M and Bathurst_Inlet. Jake_M are float rocks and cobbles made of igneous sediments with evolved, alkaline compositions and pitted, dusty surfaces. Bathurst_Inlet are least altered potassic basaltic sediments in siltstone sandstone to matrix-supported conglomerates. Simple petrologic models demonstrate there is a need for more than one distinct crystalline source. Bathurst_Inlet class targets are not mantle melts and Jake_M class targets are not differentiated from Bathurst_Inlet or Adirondack. NGL may be one source for the volcaniclastic sediments in Gale Crater.","abstract_has_math":false,"creators":["Churchill, Jeffrey"],"institution":"Brock University","degree_name":"M.Sc. Earth Sciences","degree_level":"Masters","degree_discipline":"Faculty of Mathematics and Science","degree_department":"Department of Earth Sciences","school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2019,"date_issued":"2019-05-10T15:08:19Z","date_published":"2019-05-10T15:08:19Z","updated_at":"2026-07-24T01:23:00Z","subjects":["Mars","Gale Crater","volcanology","geochemistry","petrological modelling"],"languages":["eng"],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/10464/14110","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.department","label":"Department","values":["Department of Earth Sciences"]},{"key":"dc:creator","label":"Author","values":["Churchill, Jeffrey"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2019-05-10T15:08:19Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2019-05-10T15:08:19Z"]},{"key":"dc:date.issued","label":"Date","values":["2019-05-10T15:08:19Z"]},{"key":"dc:type","label":"Dc Type","values":["Electronic Thesis or Dissertation"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Faculty of Mathematics and Science"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Masters"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.Sc. 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Volcaniclastic sediments have been detected in the sedimentary rocks of Gale Crater by APXS. They can be grouped into distinct classes: Jake_M and Bathurst_Inlet. Jake_M are float rocks and cobbles made of igneous sediments with evolved, alkaline compositions and pitted, dusty surfaces. Bathurst_Inlet are least altered potassic basaltic sediments in siltstone sandstone to matrix-supported conglomerates. Simple petrologic models demonstrate there is a need for more than one distinct crystalline source. Bathurst_Inlet class targets are not mantle melts and Jake_M class targets are not differentiated from Bathurst_Inlet or Adirondack. NGL may be one source for the volcaniclastic sediments in Gale Crater."]},{"key":"dc:title","label":"Title","values":["North Gale Landform and the Volcanic Sources of Sediment in Gale Crater Mars"]}]}],"canonical_facts":{"dc:contributor.department":["Department of Earth Sciences"],"dc:creator":["Churchill, Jeffrey"],"dc:date.accessioned":["2019-05-10T15:08:19Z"],"dc:date.available":["2019-05-10T15:08:19Z"],"dc:date.issued":["2019-05-10T15:08:19Z"],"dc:description.abstract":["An investigation into the origins of a previously unidentified landform north of Gale Crater, Mars (North Gale Landform, NGL) using remotely sensed datasets and morphological mapping has determined that it is a volcanic construct that collapsed and produced a hummocky terrain deposit to the south. Volcaniclastic sediments have been detected in the sedimentary rocks of Gale Crater by APXS. They can be grouped into distinct classes: Jake_M and Bathurst_Inlet. Jake_M are float rocks and cobbles made of igneous sediments with evolved, alkaline compositions and pitted, dusty surfaces. Bathurst_Inlet are least altered potassic basaltic sediments in siltstone sandstone to matrix-supported conglomerates. Simple petrologic models demonstrate there is a need for more than one distinct crystalline source. Bathurst_Inlet class targets are not mantle melts and Jake_M class targets are not differentiated from Bathurst_Inlet or Adirondack. NGL may be one source for the volcaniclastic sediments in Gale Crater."],"dc:identifier.uri":["http://hdl.handle.net/10464/14110"],"dc:language.iso":["eng"],"dc:subject":["Mars","Gale Crater","volcanology","geochemistry","petrological modelling"],"dc:title":["North Gale Landform and the Volcanic Sources of Sediment in Gale Crater Mars"],"dc:type":["Electronic Thesis or Dissertation"],"thesis:degree_discipline":["Faculty of Mathematics and Science"],"thesis:degree_level":["Masters"],"thesis:degree_name":["M.Sc. 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