Choose a background or upload your own photo, then download a shareable quote image.
Your file stays in the browser; nothing is sent to the server.
Choose a background or upload your own photo, then download a shareable quote image.
Pressure, no doubt, has always been a most important factor in the metamorphism of rocks; but there is, I think, at present some danger in over-estimating this, and representing a partial statement of truth as the whole truth. Geology, like many human beings, suffered from convulsions in its infancy; now, in its later years, I apprehend an attack of pressure on the brain.