erosion

Search
Go

Discussion Topic

Return to Forum List
This thread has been locked
Messages 121 - 140 of total 300 in this topic << First  |  < Previous  |  Show All  |  Next >  |  Last >>
Lorenzo

Trad climber
Portland Oregon
Nov 15, 2015 - 09:43pm PT
Yes, it's real.

thebravecowboy

climber
The Good Places
Topic Author's Reply - Nov 15, 2015 - 09:51pm PT
Any ideas on the timing of structural upset L? Lacustrine sedimenrt? Depo-history ideas?
Lorenzo

Trad climber
Portland Oregon
Nov 15, 2015 - 10:02pm PT
I'm no geologist, but it's a limestone formation called Yacoraite, which runs down the East side of the Andes from Peru,Bolivia, and through Salta and Jujuy provinces.

From Wiki:



Yacoraite Formation
Type Geological formation
Sub-units Amblayo, Güemes, Alemanía and Juramento Members
Underlies Olmedo Formation, Tunal Formation
Overlies Lecho Formation


The Yacoraite Formation is a largely Mesozoic geologic formation. The deposits of this formation mainly date from the Maastrichtian of the Upper Cretaceous, but the Cretaceous–Paleogene boundary (K–T boundary) runs right through this formation near its top, and the uppermost parts are consequently from the Danian (Lower Paleocene). It was probably deposited around the intertidal zone, as the sedimentary rocks of this formation alternate according to sea level changes between deposits of muddy beaches and of shallow ocean.[1]

Dinosaur stuff.


Perhaps more famous ( right off the main road) is el cerro de Los siete colores just outside Purmamarca. Part of the Quebrada de Humahuaca.
thebravecowboy

climber
The Good Places
Topic Author's Reply - Nov 15, 2015 - 10:20pm PT
Absolutely stunner!
Lorenzo

Trad climber
Portland Oregon
Nov 15, 2015 - 10:50pm PT
Yeah, goes on for miles and miles, too.


Had to make sure I didn't drive off the road.
jeff constine

Trad climber
Ao Namao
Nov 16, 2015 - 07:54am PT
thebravecowboy

climber
The Good Places
Topic Author's Reply - Nov 16, 2015 - 10:47pm PT
thebravecowboy

climber
The Good Places
Topic Author's Reply - Nov 17, 2015 - 07:10pm PT
thebravecowboy

climber
The Good Places
Topic Author's Reply - Dec 8, 2015 - 12:02pm PT
thebravecowboy

climber
The Good Places
Topic Author's Reply - Dec 11, 2015 - 07:03pm PT

there is an unclimbed dome of Navajo at roughly a mile above sea level just above this place. Access is, well.....you know.
hooblie

climber
from out where the anecdotes roam
Dec 17, 2015 - 12:42am PT
thebravecowboy

climber
The Good Places
Topic Author's Reply - Dec 23, 2015 - 08:01pm PT
tuolumne_tradster

Trad climber
Leading Edge of North American Plate
Dec 23, 2015 - 08:06pm PT
slump blocks at the toe of a land slide, altamont hills, ca

uplifted and eroded pleistocene alluvial fan deposit, northern foothills, avawatz mountains

budd creek, sept 2015
neverwas

Mountain climber
ak
Dec 24, 2015 - 12:33am PT
hooblie

climber
from out where the anecdotes roam
Dec 29, 2015 - 10:05am PT
strange that the erosional feature on the right, more developed than the one on the left, would be positioned below a less productive looking catchment,


in fact it appears to be roughly positioned on a divide, fed primarily by fractures angling through the mid layer. lower slopes comparatively uncut ... ?
tuolumne_tradster

Trad climber
Leading Edge of North American Plate
Jan 3, 2016 - 03:31pm PT
DMT: ^^^ Artist's Palette Death Valley...correct?

alluvial fan from the Grapevine Mountains
tuolumne_tradster

Trad climber
Leading Edge of North American Plate
Jan 3, 2016 - 03:40pm PT
Eroded & quarried remains of a Miocene Volcano in the Berkeley Hills
Sibley Volcanic Preserve

hooblie

climber
from out where the anecdotes roam
Jan 14, 2016 - 05:41pm PT
exactomatic. but, hey we itinerant tourons know our limitations. we expect consummate coolness from free range locals!
i like that picture ... it's got stucture, eh?
thebravecowboy

climber
The Good Places
Topic Author's Reply - Jan 14, 2016 - 05:45pm PT

hooblie

climber
from out where the anecdotes roam
Jan 14, 2016 - 06:18pm PT
the intrepid cattle lad: you seem to get around where i belong. is there a window for to submit a subman resume? i drink on thursdays ... too
Messages 121 - 140 of total 300 in this topic << First  |  < Previous  |  Show All  |  Next >  |  Last >>
Return to Forum List
 
Our Guidebooks
spacerCheck 'em out!
SuperTopo Guidebooks

guidebook icon
Try a free sample topo!

 
SuperTopo on the Web

Recent Route Beta