Rob Larter · @PoLaRobs
546 followers · 271 posts · Server fediscience.org

Any geologists/geomorphologists wish they could see inside an ? There's a place in north where you can.
Lidar image and three photos here. Uppermost preserved layer contains densely-packed, well-rounded flint cobbles, indicating powerful water flow.
N.B. car keys included in close-up photo for scale.

#norfolk #esker #glacial

Last updated 1 year ago

Megalithic Portal (Andy B) · @megalithic
939 followers · 202 posts · Server archaeo.social

The Skystone is a boulder in Bonney Lake, state. It was deposited approximately 13,000 years ago. It has over 20 pits pounded into its surface, presumably by members of the tribe. The holes seem to point towards both and geographic features. More: megalithic.co.uk/article.php?s

#glacial #erratic #washington #puyallup #astronomical #FolkloreThursday #folklore #archaeology

Last updated 1 year ago

GregCocks · @GregCocks
598 followers · 530 posts · Server techhub.social
AI6YR · @ai6yr
4505 followers · 29832 posts · Server m.ai6yr.org

USGS: Volcanoes "On Aug 15, a small glacial outburst transitioned to a debris flow in
@MountRainierNPS
. Flow remained in remote upper reaches of Tahoma Creek drainage (no damage). Event detected by lahar monitoring stations, like TABR. Strongest signal occurs as flow front passes."

#usgs #glacial #outburst #melting #mountranier #debrisflow

Last updated 1 year ago

Julie Robb🏠 · @SpatiallyWired
182 followers · 333 posts · Server mstdn.social

I wonder if it ever annoyed Kubrick that his creative process took so long? Like, did he ever have exec types turning him down for work because they knew he didn't crank out product like a gumball machine, & maybe he wished he could work faster like everyone else? I mean, I can see him being pure confidence, but, as someone who creates with a similar meticulous, against-the-grain pace, I end up with horrible doubts, & lots of rejection, etc, etc, & I just wonder.

#Artist #pace #glacial

Last updated 1 year ago

AI6YR · @ai6yr
4382 followers · 28604 posts · Server m.ai6yr.org
steve dustcircle ⍻ · @dustcircle
318 followers · 10416 posts · Server masto.ai

break causes major in , officials issue declaration

flip.it/UfATVG

#glacial #flooding #alaska #emergency

Last updated 1 year ago

DoomsdaysCW · @DoomsdaysCW
1295 followers · 16894 posts · Server kolektiva.social

’s record glacial outburst flood prompts evacuations and destroys at least 1 home

August 5, 2023 by Anna Canny, KTOO

"The source of this weekend’s is a dam outburst flood from , above the . An update from the National Weather Service described record flooding of waterways and low-lying areas, along with flooding 'in areas that have not previously seen flooding before.'"

ktoo.org/2023/08/05/city-recom

#juneau #flooding #glacial #suicidebasin #mendenhallglacier #glaciers #glacialmelting #ClimateChange #ClimateCrisis #climatecatastrophe #alaska #juneaualaska

Last updated 1 year ago

AI6YR · @ai6yr
4369 followers · 28436 posts · Server m.ai6yr.org

draining (suddenly) above . -- has resulted in record flooding along Nugget Creek in Juneau, homes washed away.

#glacial #lake #juneau #alaska #akwx #suicidebasin #ak #nuggetcreek

Last updated 1 year ago

AI6YR · @ai6yr
4369 followers · 28432 posts · Server m.ai6yr.org

@ingalls @cantzler Let's see if this works... time lapse of in

#glacial #lake #suicidebasin #nuggetcreek #ak #akwx

Last updated 1 year ago

GregCocks · @GregCocks
305 followers · 395 posts · Server techhub.social
GregCocks · @GregCocks
297 followers · 389 posts · Server techhub.social
Chris White · @Ceedave
128 followers · 241 posts · Server sciencemastodon.com

Anomalous pebble in layered

An angular pebble is conformably surrounded by argillaceous and sandy layers in this of the Member of the Conglomerate. The wide range of clast sizes led to an interpretation as a thru the 1970s, but the Squantum Member is now mostly interpreted as a ( or ). My .

#sedimentary #rock #photograph #Neoproterozoic #squantum #roxbury #glacial #tillite #debrisflow #debrite #turbidite #photo #boston #fieldtrip #umassboston

Last updated 1 year ago

Chris White · @Ceedave
127 followers · 237 posts · Server sciencemastodon.com

Deformed bedding in meta#sedimentary

The horizontal bedding of the Member of the Conglomerate (, Bay Group) has been disturbed locally.

In the interpretation of the Squantum (favored through at least the 1970s), the distortion might be caused by glaciotectonic drag at the ice base. The current interpretation as a or would probably attribute the deformations to synsedimentary slumping. My .

#rocks #squantum #roxbury #Neoproterozoic #boston #glacial #tillite #debrite #turbidite #photo #fieldtrip

Last updated 1 year ago

Chris White · @Ceedave
126 followers · 235 posts · Server sciencemastodon.com

Rapid changes in size in

The Member of the Conglomerate ( Bay Group) transitions from sandstone, to almost-clast-supported conglomerate, to laminated argillite…in about 25 cm. Fifty years ago, it was interpreted as a deposit and called the Squantum , presumably associated with the Glaciation. Paucity of evidence (e.g., few scratches or faceted clasts) suggests a debris flow. My .

#clast #sedimentary #rocks #Neoproterozoic #squantum #roxbury #boston #glacial #tillite #gaskiers #photo

Last updated 1 year ago

Chris White · @Ceedave
124 followers · 231 posts · Server sciencemastodon.com

The went that-a-way

The on this face of the (ca. 560 Ma) Member of the were probably left by the ice sheet, which retreated ca. 12 ka. The striations have the right orientation, from northwest to southeast.

The Squantum Member was once interpreted as a () . The most common contemporary model is a peri- ().

My .

#Glacier #striations #ediacaran #squantum #roxbury #conglomerate #Pleistocene #laurentide #glacial #tillite #gondwana #debrite #turbidite #photo #boston #geology #newengland #fieldtrip

Last updated 1 year ago

Chris White · @Ceedave
124 followers · 228 posts · Server sciencemastodon.com

Interbedded argillaceous & tuffaceous

These photos are of , exposed above the Member of the Conglomerate (). Prior to the 1970s or so, the Squantum Member was interpreted as sediments; it's now broadly interpreted as debris flows, with the Cambridge being distal turbidites overlying it. I lead a field trip here for . See captions.

65mm

#sediments #cambridge #argillite #squantum #roxbury #Neoproterozoic #glacial #umassboston #outcrop #fieldtrip #photo #rocks #tuff #fufjilm #venus #macro #quincy

Last updated 1 year ago

Chris White · @Ceedave
124 followers · 228 posts · Server sciencemastodon.com

Interbedded argillaceous & tuffaceous

These photos are of , exposed above the Member of the Conglomerate (). Prior to the 1970s or so, the Squantum Member was interpreted as sediments; it's now broadly interpreted as debris flows, with the Cambridge being distal turbidites overlying it. I lead a field trip here for . See captions.

15mm

#sediments #cambridge #argillite #squantum #roxbury #Neoproterozoic #glacial #umassboston #outcrop #fieldtrip #photo #rocks #tuff #fufjilm #venus #macro #quincy

Last updated 1 year ago

Chris White · @Ceedave
124 followers · 228 posts · Server sciencemastodon.com

Interbedded argillaceous & tuffaceous

These photos are of , exposed above the Member of the Conglomerate (). Prior to the 1970s or so, the Squantum Member was interpreted as sediments; it's now broadly interpreted as debris flows, with the Cambridge being distal turbidites overlying it. I lead a field trip here for . See captions.

15mm

#sediments #cambridge #argillite #squantum #roxbury #Neoproterozoic #glacial #umassboston #outcrop #fieldtrip #photo #rocks #tuff #fufjilm #venus #macro #quincy

Last updated 1 year ago

GregCocks · @GregCocks
225 followers · 287 posts · Server techhub.social