A network of intruded mineral vein in a coherent facies of ryolite lava. This picture ca. 40 c
A network of intruded mineral vein in a coherent facies of ryolite lava. This picture ca. 40 cm wide. 鉱物脈 -- source link
Tumblr Blog : happy-geology.tumblr.com
#nature#science#geology#outcrop#igneous rock#ryolite#miocene#niigata#original photographers#流紋岩#新潟#中新世#弥彦海岸