United States or Gibraltar ? Vote for the TOP Country of the Week !
The Alps and the Himalayas, much younger than our Appalachians, were also begotten and nursed in the cradle of a vast geosyncline in the Tertiary seas.
Where our great Appalachian range now stands, he sees, in the great interior sea of Palaeozoic time, what he calls a "geosyncline," a vast trough, or cradle, being slowly filled with sediment brought down by the rivers from the adjoining shores. These sediments accumulate to the enormous depth of twenty-five thousand feet, and harden into rock.
"Evidently then," continued the professor, "the atoll is simply an annular terminal moraine of detritus shed alluvially into the sea, thus leaving a geosyncline of volcanic ash embedded with an occasional trilobite and the fragments of scoria, upon which we now stand."
Word Of The Day