3. Malone DL,. Hess JR, Fingerhut A. Massive transfusion practices around the globe and a suggestion for a common massive transfusion protocol. J Trauma 2006; S91-S96. 4. O'Keeffe T, Refaai M, Tchorz K, Forestner JE, Sarode R. A massive transfusion protocol to decrease blood component use and costs.
The Rocky Mountains were formed between 80 and 35 million years ago by what is called the Laramide orogeny. Basically the oceanic crust got pushed under the continâ¦ental crust and large landforms were crated. Over millions of years, erosion sculpted the mountains into what we see today.
The Grand Canyon began forming 17 million years ago at the western end in a west to east direction, and at a rather slow rate. Some time later, the east end of the Grand Canyon began forming from east to west, at a much more rapid rate. Eventually the two ends merged and the Colorado River emerged.However, some scientists suggest Polyak and Hillâs methods and interpretations may be too narrow or incomplete.owever, for the past 100 years or so, geologists have agreed, based on a robust data corpus, that the Grand Canyon is probably five to six million years old, even though the rock from which it is carved is up to two billion years old.