 | 1893 - 988 páginas
...the deposition of chemically derived granules. This probably takes place, and may be a very important factor in the formation of limestones in seas receiving...down in relatively shallow waters. Limestones with ripple-marks and sun cracks occur, and beds of ripple-marked sandstones alternate with shales and limestones.... | |
 | American Association for the Advancement of Science - 1894 - 516 páginas
...the deposition of chemically derived granules. This probably lakes place, and may be a very important factor in the formation of limestones, in seas receiving...formations of this continent that they were deposited in Lheileopsea; on the contrary, the}- are unlike such deposits and bear positive evidence of having been... | |
 | 1893 - 912 páginas
...the deposition of chemically derived granules. This probably takes place, and may be a very important factor in the formation of limestones in seas receiving...were deposited in the deep sea ; on the contrary they arc unlike such deposits and bear positive evidence of having been laid down in relatively shallow... | |
 | American Association for the Advancement of Science - 1894 - 548 páginas
...the deposition of chemically derived granules. This probably takes place, and may be a very important factor in the formation of limestones, in seas receiving...down in relatively .shallow waters. Limestones with ripple-marks and sun-cracks occur, and beds of ripple-marked sandstones alternate with shales and limestones.... | |
 | American Association for the Advancement of Science - 1894 - 518 páginas
...place, and may be a very important factor in the formation of limestones, in seas receiving a large О supply of calcium from the land. Calcareous conglomerates...down in relatively shallow waters. Limestones with ripple-marks and sun-cracks occur, and beds of ripple-marked sandstones alternate with shales and limestones.... | |
 | American Association for the Advancement of Science - 1894 - 524 páginas
...the deposition of chemically derived granules. This probably lakes place, and may be a very important factor in the formation of limestones, in seas receiving...of this continent that they were deposited in the ileep sea; on the contrary, they are unlike such deposits and bear positive evidence of having been... | |
 | American Association for the Advancement of Science - 1894 - 524 páginas
...is no evidence in the marine geologic formations of this continent that they were deposited in Uie deep sea ; on the contrary, they are unlike such deposits...down in relatively shallow waters. Limestones with ripple-maj'ks and sun-cracks occur, and beds of ripple-marked sandstones alternate with shales and... | |
 | 1893 - 910 páginas
...the deposition of chemically derived granules. This probably takes place, and may be a very important factor in the formation of limestones in seas receiving...down in relatively shallow waters. Limestones with ripple-marks and sun cracks occur, and beds of ripple-marked sandstones alternate with shales and limestones.... | |
 | American Association for the Advancement of Science - 1894 - 516 páginas
...the deposition of chemically derived granules. This probably takes place, and may be a very important factor in the formation of limestones, in seas receiving...they were deposited in the deep sea; on the contrary, the}' are unlike such deposits and bear positive evidence of having been laic] down in relatively shallow... | |
 | Smithsonian Institution. Board of Regents - 1894 - 1122 páginas
...the deposition of chemically derived granules. This probably takes place, and may be a very important factor in the formation of limestones in seas receiving...enter as a prominent deposit in the Cordilleran area. " Loc. cil., p, 277. In this connection I wish to ask the student to read Messrs. Murray and Irvine's... | |
| |
... the conclusion that the deposition of carbonate of lime is by both organic agency and chemical precipitation. It is not necessary to speak of deposition by mechanical methods except in relation to the deposition of chemically derived granules. This... 