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<url><loc>https://timothyrkeen.com/2026/10/27/geologic-survey-of-the-northern-cascades-4-older-sedimentary-wedge-mixing-or-thrust-faulting/</loc><news:news><news:publication><news:name>Timothy R. Keen</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-10-28T03:27:44+00:00</news:publication_date><news:title>Geologic Survey of the Northern Cascades: 4. Thrust Faulting within a Subduction Zone</news:title><news:keywords>geology, nature, travel, northern-cascades, columbia-river</news:keywords></news:news></url><url><loc>https://timothyrkeen.com/2026/10/26/geologic-survey-of-the-northern-cascades-3-metamorphic-and-igneous-rocks-east-of-the-orogenic-core/</loc><news:news><news:publication><news:name>Timothy R. Keen</news:name><news:language>en</news:language></news:publication><news:publication_date>2026-10-27T03:43:34+00:00</news:publication_date><news:title>Geologic Survey of the Northern Cascades: 3. Metamorphic and Igneous Rocks East of the Orogenic Core</news:title><news:keywords>geology, washington, photography, northern-cascades</news:keywords></news:news></url></urlset>
