Serpentine Geoecology

from Alaska to Baja California

Scroll through pictures of serpentine outcrops in

the Blue Mountains, Northern Cascades, Gulf of Alaska,
Denali and Northern Alaska
and
the Stillwater complex in the Rocky Mountain Range.

 
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Dom06-01a

Blue Mountains, Canyon Mtn. locality, Baldy Mountain
alpine fell field at about 2200 m on serpentinized peridotite, but timber up over 2700 m
on nonserpentine soils in Strawberry Range beyond Baldy Mountain

Dom06-01b

Blue Mountains, Canyon Mtn. locality, Vinegar Hill (2478 m)
a ridge of serpentinized peridotite leads off to the left, just above road

Dom06-01c

Blue Mountains, Canyon Mtn. locality, along ridge NW from Vinegar Hill
Lithic Haplocryoll on shoulder of ridge with whitebark pine/sagebrush/buckwheat–phlox/sedge plant community with sparse Douglas-fir, patchy juniper (J. communis), and bluegrass, and forbs

Dom06-01d

Blue Mountains, Canyon Mtn. locality, along ridge NW from Vinegar Hill
view from footslope sagebrush–rumex plant community on deep Haplocryoll across road
to backslope with ponderosa pine/sagebrush/buckwheat–phlox/sedge on moderately deep Cryalf


Dom06-01e

Blue Mountains, Canyon Mtn. locality, Aldrich Mountains, south of Mt. Vernon
ponderosa pine–Douglas-fir plant community on serpentine Typic Argixerolls and
juniper (J. scopulorum)/Cercocarpus ledifolius/Idaho fescue–bluegrass on Lithic Haploxerolls

Dom06-01f

Blue Mountains, Canyon Mtn. locality, West Bank west of Canyon City
juniper (J. scopulorum)/wheatgrass plant community on Mollisols of serpentine melange,
except that main grass is stipa (Achnatherum thurberiana) here

Dom07-01

Northern Cascade–Fraser River, Stuart Lake locality
Mt Sidney Williams (nonserpentine) with a serpentine bluff on right, spotty serpentine in clearcut

Dom07-02

Northern Cascade–Fraser River, Shulaps locality
subalpine serpentine Inceptisols (Cryepts) above Blue Creek
whitebark pine/willow–low juniper–buckwheat–kinnikinnick/Sedum lanceolatum–arctic lupine

Dom07-03

Northern Cascade–Fraser River, Hozameen locality
Olivine Mountain (within Tulameen concentric body) from upstream along the Tulameen River

Dom07-05

Northern Cascade–Fraser River, Twin Sisters locality
Twin Sisters (dunite) from Washington highway 9, Mt. Baker, an old volcano, on left


Dom08-05

Gulf of Alaska, Eklutna locality, Chugach Range
Inceptisols and Mollisols on open S-facing slope with buffaloberry (Sheperdia canadensis)–low juniper (J. communis)–kinnikinnick (A. uva-ursi)–prickly saxifrage (S. tricuspidata)/fescue grass

Dom08-13

Gulf of Alaska, Union Bay locality, cropped photo of P. Krosse
alpine meadow (Inceptisols) and forest (Inceptisols and Spodosols) on Golden Mountain,
one of the first Alaska-type (concentric) bodies thoroughly described by petrologists


Dom09-08

Denali–Yukon, Nahlin locality, west of Atlin, alpine tundra
Inceptisols with caespitose willow–yellow mountain avens (Dryas drummondii)/sedges–grass, and patches of mountain-heather (C. tetragona), silene (S. acaulis), and stonecrop (S. lanceolatum)

Dom10-06a

Northern Alaska–Kuskokwim Mountains, Kanuti locality
east end of serpentine Caribou Mountain, alpine tundra with white spruce forests on sides
forbs (including Dryas octapetala), polar grass, and lichens on summit of ridge in foreground

Dom10-06b

Northern Alaska–Kuskokwim Mountains, Kanuti locality
Caribou mountain side with alpine tundra on Inceptisols (Eutrocryepts) with crowberry (Empetrum nigrum)–blueberry (V. uliginosum)–dwarf willow–Labrador tea–Cassiope tetragona)/moss/lichens

Dom10-06c

Northern Alaska–Kuskokwim Mountains, Kanuti locality
Caribou Mountain solifluction hollow, wet Inceptisols with dwarf birch (B. glandulosa)–Labrador tea–mountain-heather (C. tetragona)–alpine blueberry (V. uliginosum)/sedges/sphagnum/lichens

 
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Dom10-13a

Northern Alaska–Kuskokwim Mountains, Livengood locality
well-drained Inceptisol (Typic Eutrocryept) in frost-shattered serpentine on S-facing slope
white spruce (P. glauca)/kinnickinick (A uva-ursi)/low juniper (J. communis)/mosses, lichens


Dom10-13b

Northern Alaska–Kuskokwim Mountains, Livengood locality
somewhat poorly-drained Inceptisol in lithologically mixed colluvium on N-facing slope
black spruce (P. mariana)/Ledum palustre decumbens plant community with much sphagnun

Dom10-13c

Northern Alaska–Kuskokwim Mountains, Livengood locality
well-drained Inceptisol (Typic Eutrocryept) in frost-shattered serpentine on ridge summit
paper birch (B. papifera)/Labrador tea–lingonberry (V. vitis-idaea)/Calamagrostris canadensis

Dom11a

Stillwater complex, Rocky Mountain Range
Bear Tooth Plateau south from alpine tundra on Iron Mountain (3075 m asl)


Dom11b

Stillwater complex, Rocky Mountain Range
deep Alfisol (Cryalf) of pyroxenite on north side of Iron Mountain with
spruce (P. engelmannii)–pine (P. albicaulis)–fir (A. lasiocarpa)/grouseberry (V. scopularum)

Dom11c

Stillwater complex, Rocky Mountain Range
Alfisol (Haplocryalf) of pyroxenite on Chrome Mountain (3058 m)
lupine (L. bicolor)–bistort (P. bistortoides)–sandwort (Minuartia sp.)/tufted hairgrass/sedges

Dom11d

Stillwater complex, Rocky Mountain Range, Stillwater Mine
located where Stillwater River crosses Stillwater complex, paladium and platinum concentration

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