Here are some additional bits of information to add to the catastrophic Global Flood topic. Studies carried out by the billions of years evolutionist leaning theorists only in the Grand Canyon may not give good answers here. Every continent contains layers of sedimentary rocks that span vast areas. Many of these layers can even be traced across continents.Consider the sedimentary rock layers exposed in the walls of the Grand Canyon in northern Arizona. This sequence of layers is not unique to that region of the USA. For more than 50 years geologists have recognized that these strata belong to six megasequences (very thick, distinctive sequences of sedimentary rock layers) that can be traced right across North America.1The lowermost sedimentary layers in the Grand Canyon are the Tapeats Sandstone, belonging to the Sauk Megasequence. It and its equivalents (those layers comprised of the same materials) cover much of the USA. We can hardly imagine what forces were necessary to deposit such a vast, continent- wide series of deposits. Yet at the base of this sequence are huge boulders and sand beds deposited by storms. Both are evidence that massive forces deposited these sediment layers rapidly and violently right across the entire USA. Slow-and-gradual (present-day uniformitarian) processes cannot account for this evidence, but the global catastrophic Genesis Flood surely can. Read about much more stunning young-earth worldwide geology at Answers in Genesis. Enjoy!
.[quote=āMark_Shields, post:21, topic:5266ā]
the global catastrophic Genesis Flood surely can
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No, I donāt think it can. The layers are more like leaves layered in the yard than a thick layer of muck on the sidewalk after a storm. Think about it and think about the how long it takes for rock to form, then erode into sand and boulders, to reform into sandstone and conglomerates, then to erode again into the canyon.
Read what a Christian geologist has to say about the Grand Canyon right here and for a really good book on geology try The Bible, Rocks and Time here on BioLogos.
Perhaps you are fixating a little too closely on the āmassivenessā of the deposits. The underwater continental shelf is also immense ā¦ and layer upon layer of sediment is laid down on this underwater terrain.
A quick look at this USGS map of the vast inland seas covering huge swaths of North America in the Cretaceous period: [colors added by me]
Instead of focusing on sedimentsā¦ I recommend you look at what are in those sediments.
There are no large mammals mixed with dinosaursā¦ anywhere in the worldā¦ not even meat-eating dinosaurs chewing on a cow or a horse or anything like it.
This is information that the Flood Scenarios offer no solutions for ā¦