alb3843281

Joshua Tree Rock Formations

Monzogranite peak breaking up from jointing, mostly vertical.  A prominent aplite dike cuts through the top.  Spheroidal weathering rounds off and smooths the boulders.  This is also an inselberg, a corestone isolated in ages past by deep chemical weathering of the quartz monzogranite.  Joshua Tree National Park, California.
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Título:
Joshua Tree Rock Formations
Monzogranite peak breaking up from jointing, mostly vertical. A prominent aplite dike cuts through the top. Spheroidal weathering rounds off and smooths the boulders. This is also an inselberg, a corestone isolated in ages past by deep chemical weathering of the quartz monzogranite. Joshua Tree National Park, California.
Crédito:
Album / Science Source / Charlie Ott
Autorizaciones:
Modelo: No - Propiedad: No
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Tamaño imagen:
3681 x 4750 px | 50.0 MB
Tamaño impresión:
31.2 x 40.2 cm | 12.3 x 15.8 in (300 dpi)