The article also describes findings in 2002 by geologists House and Pearthree, who discovered evidence that the initial flooding of the northern section of the Colorado River trough was characterized by southward-transported flood deposits. These types of flood deposits would be unexpected for initial inundation from sea water derived far to the south, but rather, they are consistent with an upstream lake spillover that occurred during the initial influx of Colorado River water that originated from the north in the Lake Mead area (Spencer and Pearthree 1-6)
The scientific community does not know if no rocks were formed during this period, or if they were formed but then eroded away. The fact that this unconformity which spans almost a billion years is found nearly everywhere across the globe makes the geological mystery that much more fascinating (Treiman n
The Grand Canyon is one of the most interesting geological wonders of the world, and it is right here in our backyard. It stretches over 277 miles across the northern portion of Arizona, in the middle of the Southwest desert of the United States (Meek & Douglass, 2001)
The canyon boasts complex geological features that some say date as far back as the Precambrian era. In fact, the research states that "the canyon offers one of the best geological cross sections in the world, with nearly 30 distinct layers found from the bottom to the top; the mesas, buttes, colorful slopes, and spires illustrate the geological story of the great American Southwest" (Missler, 2011)