We hope you will join us for our tenth 2026 AEG Inland Empire meeting. The meeting will be held Wednesday, Novemver 11, at the Luna Modern Mexican Kitchen, in Corona. This is a “south” venue of our roving AEG-IE meeting locations and at a new location. Looking forward to seeing you there!
UPCOMING MEETING NOTICE
*** Wednesday, November 11, 2026 ***
Download the Announcement 
| Topic: | Exploring the influence of Carboniferous tectonics on sediment transport through detrital zircon geochronology and thermochronology |
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| Speaker: | Dr. Tandis Bidgoli, Department of Geological Sciences, California State University, San Bernardino |
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| Date: | Wednesday, November 11, 2026 Social hour: 5:30 pm Dinner: 6:30 pm Presentation: 7:30 pm |
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| Location: | Luna Modern Mexican Kitchen 980 Montecito Dr. Suite 110 Corona, CA 92879 |
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| Cost: | $45 per person with advance reservations for AEG members, $50 for non-AEG members, $50 for anyone without reservations (at the door), and $10 for students with a valid student ID and current AEG Student membership; the Student Membership is FREE, but it sometimes takes a few days to receive a student membership. |
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| Food: | Food from Luna Modern Mexican Kitchen |
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| RSVP: |
Click here to register and pay online Please make reservations online prior to 12:00pm on November 9, 2026. |
Email AEG-IE at meetings@aeg-ie.org Please make reservations prior to 12:00pm on November 9, 2026. |
| Presentation Summary: | |
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Late Mississippian to Early Pennsylvanian tectonic and climatic shifts transformed the U.S. midcontinent from a stable carbonate shelf into a clastic dominated system. Using sandstone compositions and detrital zircon U Pb ages paired with more than 100 (U Th)/He dates, this study evaluates how the Alleghanian– Ouachita–Marathon and Ancestral Rocky Mountains (ARM) orogens shaped sediment provenance along proposed transcontinental dispersal routes. Chesterian–Morrowan valley fill sandstones in the Hugoton Embayment in Kansas and Chesterian–Desmoinesian Arkoma shelf sandstones in Missouri record the onset of a major Late Mississippian sediment routing system tied to the Alleghanian orogeny, followed by Early Pennsylvanian provenance shifts signaling disruption by ARM related intraplate deformation. Results also underscore key considerations for applying U Pb–He double dating in orogenic settings, particularly the influence of regional hydrothermal systems on zircon He ages. |
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| Speaker Biography: | |
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Tandis Bidgoli is an Associate Professor in the Department of Geological Sciences at California State University, San Bernardino. Before joining CSUSB in 2022, she worked as a scientist with the Kansas Geological Survey and later served as faculty in the Department of Geological Sciences at the University of Missouri. Her research focuses on reconstructing temporal and spatial patterns of strain to better understand the mechanisms and drivers of deformation and landscape evolution. She is committed to strengthening the geoscience profession and currently serves on the Geological Society of America Council. |
