Photos

Evidence for multiple generations of magma injections in the East Susitna batholith along the Denali Fault.
Looking at the Denali Fault in February on the west side of the Delta River. Without a helicopter, accessing this portion of the AK Range is difficult, unless you ski over when the Delta River is frozen.
MSc students Izzy Muller and Jane Suhey working near Hatcher Pass in the southern Talkeetna Mountains, south-central Alaska
MSc student, Alec Wildland, working on protomylonitic to mylonitic peraluminous granitoids of para autochthonous North America, eastern AK
MSc students Izzy Muller and Jane Suhey measuring lineations in the Hatcher Pass Schist, southern Talkeetna Mountains, south-central Alaska
Myself standing atop a wonderful series of outcrops on Mount Fairplay, eastern Alaska
Stretching lineation parallel corrugations in mid crustal shear zone, eastern Alaska
Colleague Mark Holland looking at a feeder dike cross cutting an angular unconformity (basal conglomerate), Denali National Park, AK. Above is a greater than km thick sequence of bimodal volcanics, and below are dinosaur-print hosting fluvial siliciclastic rocks of the Cantwell Formation
Dahl Sheep investigating the Teklanika formation volcanics, Denali National Park, AK.
Isoclinal fold in (ultra)mylonitic Cora Lake shear zone, northern Saskatchewan
A cloudy morning pick-up at Angikuni Lake, Nunavut
Cobalt the Geologizing dog sitting on a sinistral shear zone in the Marcy anorthosite massif, Adirondack Mountains, NY
Mutually off setting, conjugate, shear zones localized on granitic dike and the margin of a coarse gabbroic rock in the Marcy anorthosite massif, Adirondack Mountains, NY
A xenolith of anorthosite in garnetiferous ferrodiorite (jotunite) interpreted to be a late fractionated liquid, Adirondack Mountains, NY
Garnet porphyroblast defining sinistral sigma clast in the ultramylonitic Cora Lake shear zone, northern Saskatchewan, Canada
Cobalt the geologizing dog and I taking some notes during sampling of the Schist Creek pluton, Denali Fault in background.
Working a ridge of the Schist Creek pluton, Denali Fault zone, AK