slgwv's photos with the keyword: dikes

Differential weathering

Differential weathering

slgwv
08 May 2012 153
Another example of differential weathering. The light-colored aplitic dikes are harder than the darker host rock, which is probably metamorphic altho covered with lichen! Roaring Creek drainage, off the Poudre River, Colorado, USA.
IMG_3794_cleaned_adj

IMG_3794_cleaned_adj

slgwv
28 Jul 2013 144
IMG_3795_cleaned_adj

IMG_3795_cleaned_adj

slgwv
28 Jul 2013 130
IMG_8122_adj

IMG_8122_adj

slgwv
05 Jan 2012 129
IMG_8124_adj

IMG_8124_adj

slgwv
05 Jan 2012 103
IMG_8121_adj

IMG_8121_adj

slgwv
05 Jan 2012 116
IMG_6454_adj

IMG_6454_adj

slgwv
23 Jan 2012 99
IMG_6456_adj

IMG_6456_adj

slgwv
23 Jan 2012 109
IMG_6453_adj

IMG_6453_adj

slgwv
23 Jan 2012 100
25-dike_by_shiprock-4-92_ig_adj

25-dike_by_shiprock-4-92_ig_adj

slgwv
23 Dec 2011 1 2 188
32-@Donner_Pass_sxn_ig_adj

32-@Donner_Pass_sxn_ig_adj

slgwv
30 Jan 2012 157
24-dike-4-92_ig_adj

24-dike-4-92_ig_adj

slgwv
23 Dec 2011 112
Basaltic dike

Basaltic dike

slgwv
23 Dec 2011 160
Cutting unconsolidated alluvial fan sediments in a roadcut somewhere near the Willow Beach turnoff on US 95. It was no doubt a feeder for the basaltic flows of which pieces are preserved locally (e.g., the caprock on Fortification Hill north of Hoover Dam.)
IMG_3793_cleaned

IMG_3793_cleaned

slgwv
19 Mar 2011 129
23 items in total