High surface in foreground...Trg over Tfl; low surface in bulk of image also mantled with QTrg/ Qrg?
O'Connor et al. OSL sample site at Sand Springs wash.
High gravel upstream from Saddle Butte lava dam.
Imbricated basalt clasts on crest of Saddle Butte lava dam. Lots of cherty pea gravel too.
Plausibly imbricated basalt on lava dam. Cherty pea gravel also present.
Compelling lag of basalt clasts just beyond dam crest.
Saddle Butte boulder factory.
Looking upstream from crest of Saddle Butte Dam.
Cool view of Bogus lavas below Iron Point. Looking toward Hole in the Ground.
The Great Gash below Iron Point.
Cool view to the Hole in the Ground.
Getting very cool outside.
Son of the Great Gash (the Zipper) at Rinehart Canyon. View from Rinehart Mesa.
Lighting sucks. Weather tanking fast.
New view of the Double Spring earthflow complex.
Curse the lighting. Great view to the east edge of the Hole in the Ground, no?
Great view of the old landslides on the south side of the Hole in the Ground.
The Rinehart Canyon Bogus lava pinchouts from above. Note also the landslide on river right...valley blocker?
I thought that Liz would really dig seeing photos of this area.
Very cool view of the Hole in the Ground.
Amazing view upstream from Rinehart Mesa to Jackson Hole and Iron Point.
Love that Bogus lava fill, no?
Better view of landslide at entrance to the Hole.
This is an amazing vista (and easy to get to). Great view of thick Bogus Lavas, dual pinchout on river left and Iron Point.
Don't forget the Quaternary lava that supports the toe of the hanging fan in Jackson Hole. Check Bogus lava for paleotopography.
Maybe this little landslide delivered boulders to river left at the entrance to the Hole in the Ground?
Great view upstream. Lots to talk about.
Dual pinch out of Bogus Lavas in Jackson Creek canyon.
Yes. Enamored with this view. Want to live on Rinehart Mesa.
There are gravels below the Bogus Rim lava here and the lower Bogus lava. I will post annotated photo at some point.
The gravels between the lavas are present in this outcrop.
better lighting all of a sudden.
Trust me, this weather won't last.
Lots of cool constraints on the valley down which the Bogus lavas flowed. Pretty cool.
The hanging fan at Jackson Hole.
Great view of the dual pinchouts.
Bogus Rim lava extends well up Jackson Creek.
fuzzy picture of intra-Bogus gravels.
Note fan gravels below and above Bogus Rim flow in Jackson Creek.
The Hanging Fan. I love this thing.
Fan gravels sandwiching the Bogus Rim lava in Jackson Ck canyon.
Detail. Possible lacustrine silt at base of gravel. This canyon would have been blocked by lower Bogus Lava...remember the big lava delta on river left?
The Bogus-Gravel sandwich
~15 bighorn sheep in this photo...find them
Here are those sheep again.
Nice shot of fan gravel below Bogus Rim which is, in turn, below fan gravel of Jackson Creek.
More good flow morphology on 1.8 My old lava flow that was buried with gravel.
Yes. A snow squall. I left early.
Sunrise over Chalk Basin, etc.
nice campsite on the rim
The scary road up Bogus Point and view of Chalk Basin...really, don't drive up this alone in a large truck. It is scary.
View south to Artillery. Mystery lava flow remnant near bottom center. Off the nose of Bogus Point.
The conspicuously muted landslide off of Bogus Rim. Ridges of failed rocks that parallel the rim are discernible.
Upper tier landslide off of Bogus Rim
Just say no to crack.
Big crack on Bogus Rim.
Shockingly good pahoehoe texture on 1.8 My old Bogus Lava.
Obviously, compelled to take this photo every time.
In center, the Bogus Rim (?) Ice axe on river left. Covered with cherty gravel. Too low for Bogus?
Cool view of Dogleg looking over upper tier domino blocks.
Panorama from Bogus Rim. Spans from AM-PM to Dogleg.
Decent view to lavas above AM-PM
Thick gravel on Bogus Rim. Looking upstream to Groover alcove.
Classic dual pinchout of Bogus and 'lower Bogus' lavas across from Jackson Hole. Note lava delta at base of lower Bogus.
Jackson Creek area. Rinehart Mesa forms skyline on river left.
Impressive thickness evident in Bogus lavas.
Precarious perch 270 m above river. Taking GPS measurement of Bogus gravels.
Upstream view to Iron Point. Bogus gravels on left. Note pahoehoe on absolute rim of Bogus Rim.
Eolian sand on river left. Reaches high, no? I think this might be the Six Robins Terrace site.
One of the few trib fans that creates a decent riffle.
Good view of Bogus lavas and overlying gravel (creates the soft slope).
View of Bogus overflow gravels. Rinehart Mesa forms skyline in right-center.
Best guess for first appearance of overflow gravel on Bogus Rim lava below Iron Point.
Imbricated basalt gravel at overflow on Bogus Rim
The thickest Bogus Rim trib valley fill on river left (aside from Rinehart Canyon), approx 117 m thick.
Unbeatable view of Owyhee River. I was the only human around...wtf?
Placid surface of Bogus lavas below Iron Point
New view of Iron Point
First overflow gravels on West Crater Flow. Aging hippie for scale. Note that new laser rangefinder fits comfortably on belt.
Imbricated blocks at West Crater overflow
It sucks being a field geologist, no?
blurry, but bedrock shelf evident below water surface
The bouler line unveiled?
Mapping shot. Intact Tsv below Bogus Rim
Mapping shot. Earthflow and intact Tsv below Bogus Rim.
North side of Dogleg. Didn't find paleochannel, but did find contact of Qbw on Tsv in the shaded area. Extra credit for finding the flagrant fault.
Looking toward Airplane point from Dogleg area.
Basalt-rich gravel on Qbw surface.
Dogleg overflow gravels.
Standing on Dogleg overflow looking south.
Dogleg overflow gravels
Yes. Dogleg overflow gravels again.
More gravel than I remembered up on Qbw here.
Cool view. Note thick lava delta deposits below Bogus Rim. Also notable are earthflow/landslide deposits that toe-out on the columnar lava flow in Tsv.
Hilarious pile of rounded basalt on Dogleg. Taking gps point at base of gravel.
Enjoying my new digital pen and notebook (and the only really warm day)
Yes. I take pictures of myself in the field...someone has to.
Owyhee River. Underwater.
The verdant depths of the Owyhee in Fall.
Praying for no earthquake.
North side of Dogleg. Thought I would find the Owyhee pre-Qbw paleochannel. Did find Tsv below Qbw...white blotch in shade.
Tsv below Qbw(?)...the massive lava on top of the white seds does not look like Qbw...I think it was peeled off here. Fluvial gravel at top of exposure.
Miocene intracanyon flow pinch-out across from Dogleg.
Basalt-rich gravel on Tsv(?) lava on north side of Dogleg.
A beautiful day in the middle of nowhere.
Rounded basalt abounds on parts of Qbw surface
Great view and color. On Dogleg looking downstream. Note my truck in the right of the image. I don't recommend driving down this road without a spotter. A little nerve-wracking.
Basalt rich gravel flanking Jordan Creek Canyon. Good soil.
The beautiful lava delta at Sand Springs.
Another crappy day. Great view of the lava dam.
Fluviolacustrine sediments opposite Sand Springs. The onlap goes quite high. The base is more traceable than expected given the similar tone of the Tsv here.
Pinch out of Qbso on river right downstream from Weeping Wall.
Contact of Qfl on Qbso. Note interbedded slope wash present as reddish bands. These decrease in abundance upsection.
Fine sand in Qfl section sampled for OSL.
Detail of sample site.
OSL sample site near photo center. Thick pile of fluvial gravel truncates the Qfl. Only one lake cycle here (I think).
Best osl sample site I could find in prominent sand lens in the capping gravel.
I will annotate this later as to where the two samples are from.
The onlapping Qfl continues well upslope and above the highest gravels.
Qfl onlap. Lava dam on river left in distance.
View of the old lava delta above Heavens Gate landslide complex.