Jeffrey D. Lonn
Montana Bureau of Mines and Geology, Butte, MT
Activity
2024
-
THE MESOPROTEROZOIC BELT–LEMHI CONNECTION, WESTERN MONTANA AND EAST-CENTRAL IDAHO
20 The Boring Billion was not so Boring! Mesoproterozoic Tectonics, Sedimentation, and Geochronology of Northwest Laurentia IThursday, 16 May 20248:00 AM - 12:00 PMCedar Ballroom
2022
-
KILOMETER-SCALE RECUMBENT FOLDING, TECTONIC ATTENUATION, AND MID-CRUSTAL FLOW IN THE ANACONDA METAMORPHIC CORE COMPLEX, SOUTHWESTERN MONTANA
T217 New Insights into the Evolution and Geodynamics of Metamorphic Core Complexes in North America and Around the WorldWednesday, 12 October 20228:00 AM - 12:00 PM507
-
THE ANACONDA METAMORPHIC CORE COMPLEX: CRETACEOUS DUCTILE FLOW AND EOCENE DETACHMENT FAULTING FACILITATED BY LITHOSPHERIC MAGMATISM
T217 New Insights into the Evolution and Geodynamics of Metamorphic Core Complexes in North America and Around the WorldWednesday, 12 October 20228:00 AM - 12:00 PM507
-
KINEMATIC EVOLUTION OF A WEST-VERGING FOLD NAPPE IN THE GEORGETOWN THRUST FOOTWALL, SW ANACONDA RANGE, MONTANA, USA
38 From the Sevier to Laramide: Connecting Hinterland to Foreland by Tectonics, Structure, and Sedimentation (Posters)Thursday, 17 March 20228:30 AM - 6:00 PMStudent Union Ballroom A/B
-
LATE QUATERNARY SLIP RATES AND SURFACE RUPTURE OF THE BITTERROOT FAULT, WESTERN MONTANA: AN ENIGMATIC SEISMOGENIC FAULT IN THE NORTHERN ROCKIES BASIN AND RANGE
29 Cryptic and Slow-Moving Quaternary-Active Faults in the Western United StatesWednesday, 16 March 20221:30 PM - 5:30 PMCBC-A 108
2021
-
DEVELOPMENT OF AN OROGENIC PLATEAU DURING MID-CRUSTAL FLOW IN THE CORDILLERAN HINTERLAND: EVIDENCE FROM FOOTWALL ROCKS OF THE ANACONDA METAMORPHIC CORE COMPLEX OF WESTERN MONTANA
T100 Late Cretaceous–Eocene (pre-Cascadia) Tectonics from the Greater Pacific Northwest Margin to the Rocky MountainsMonday, 11 October 20211:30 PM - 5:30 PMA106
-
LATE QUATERNARY SLIP RATES OF THE BITTERROOT FAULT IN WESTERN MONTANA FROM BE-10 DATING OF OFFSET PINEDALE AND BULL LAKE GLACIAL DEPOSITS
T34 Cenozoic Tectonism, Magmatism, Sedimentation, and Landscape Evolution in the Intermountain West IISunday, 10 October 20211:30 PM - 5:30 PMPortland Ballroom 257 (Hybrid Room)
2016
-
MESOPROTEROZOIC LEMHI STRATA REPRESENT IMMENSE ALLUVIAL APRONS THAT PROGRADED NORTHWEST INTO THE BELT SEA, IDAHO AND MONTANA
18 Source to Sink, Proterozoic to Today: Erosion, Sediment Transport, and the Stratigraphic Record of Surface ProcessesThursday, 19 May 20168:00 AM - 12:00 PMCrest Room
2014
-
GEOLOGIC MAP OF THE BOZEMAN 30’ X 60’ QUADRANGLE, SOUTHWESTERN MONTANA
34 Geologic Maps: Record of the Past, Foundation for the Future (Posters)Wednesday, 21 May 20148:00 AM - 5:00 PMBallroom B, C, D
-
NEW LIDAR DATA REVEALS LATE QUATERNARY GEOLOGY DETAILS IN THE BITTERROOT VALLEY, WESTERN MONTANA
27 Earth's Surface and HumanityWednesday, 21 May 20148:00 AM - 12:00 PMSUB 233/235
-
THE NORTHERN EXTENT OF THE MESOPROTEROZOIC LEMHI GROUP, IDAHO AND MONTANA, AND STRATIGRAPHIC AND STRUCTURAL RELATIONS WITH BELT SUPERGROUP STRATA
22 Precambrian II: Meso- and Neoproterozoic Evolution of Western Laurentia I: In Honor of Don WinstonTuesday, 20 May 20141:00 PM - 5:00 PMGaines Hall 101
-
REVISIONS OF MESOPROTEROZOIC AND CAMBRIAN STRATIGRAPHY: IMPLICATIONS FOR BELT BASIN PALEOGEOGRAPHY WITHIN THE BUTTE SOUTH 30’ X 60’ QUADRANGLE, SW MONTANA
20 Precambrian II: Meso- and Neoproterozoic Evolution of Western Laurentia: In Honor of Don Winston (Posters)Tuesday, 20 May 20148:00 AM - 5:00 PMBallroom B, C, D
2013
-
STATEMAP RESULTS FROM THE IDAHO-MONTANA LINE: PROTEROZOIC STRATA ARE THICKER AND YOUNGER THAN PREVIOUSLY THOUGHT
17 Mapping in the Rocky Mountains: Results from STATEMAP and EDMAP Projects (Posters)Thursday, 16 May 20138:00 AM - 5:00 PMNorth/South Ballroom
2011
-
CRETACEOUS SYNOROGENIC AND EOCENE POST-OROGENIC EXTENSION IN THE SEVIER HINTERLAND, SOUTHWESTERN MONTANA
10 From Contraction to Extension: The Mesozoic to Cenozoic Tectonic Evolution of the Northern Great Basin IIWednesday, 18 May 20111:30 PM - 5:00 PMWillow
-
THE BEAVERHEAD DIVIDE FAULT ON THE IDAHO-MONTANA BORDER – CRETACEOUS CONTRACTION, EOCENE EXTENSION, BUT NOT A TERRANE BOUNDARY
10 From Contraction to Extension: The Mesozoic to Cenozoic Tectonic Evolution of the Northern Great Basin IIWednesday, 18 May 20111:30 PM - 5:00 PMWillow
2009
-
REGIONAL STRATIGRAPHIC IMPLICATIONS FROM NEW MAPPING OF THE NORTHERN BEAVERHEAD RANGE, MONTANA AND IDAHO
T101 Geologic Maps, Digital Geologic Maps, Geophysical Maps, and Derivatives from Geologic Maps (Posters)Monday, 19 October 20099:00 AM - 6:00 PMHall A
Date Unknown
-
GEOMETRIC AND KINEMATIC RELATIONSHIPS BETWEEN HIGH-TEMPERATURE AND LOW-TEMPERATURE FAULTING IN THE ANACONDA DETACHMENT ZONE, SOUTHWEST MONTANA
165 Structural Geology (Posters)
-
EXHUMATION AND KINEMATICS ALONG THE LEWIS AND CLARK STRIKE-SLIP SYSTEM: ANACONDA EXTENSIONAL TERRAIN, WEST-CENTRAL MONTANA
T227 Exhumation Along Major Continental Strike-Slip Fault Systems (Posters)