Academic Journal
The Pre-Flood / Flood Boundary: As Defined in Grand Canyon and East Mojave
| العنوان: | The Pre-Flood / Flood Boundary: As Defined in Grand Canyon and East Mojave |
|---|---|
| المؤلفون: | Austin, Steven A., Wise, Kurt P. |
| المصدر: | Proceedings of the International Conference on Creationism |
| بيانات النشر: | DigitalCommons@Cedarville |
| سنة النشر: | 2020 |
| المجموعة: | Cedarville University: DigitalCommons@Cedarville |
| مصطلحات موضوعية: | Flood Model, Pre-Flood/Flood Boundary, Sedimentation, Sedimentary Rocks, Strata, Stratigraphy, Time, Tectonics, Erosion, Paleontology, Fossils, Discontinuity, Unconformity, Southwestern United States, Grand Canyon, Mojave Desert, Precambrian, Cambrian, Paleozoic, Megasequence, Continental Margin, Ocean Floor, Submarine Megaslide, Gravitational Collapse, Megabreccia, Megaclast, Diamictite |
| الوصف: | The singular events which occurred at the initiation of the Flood should have produced a geologic signature with at least five characteristics: 1) A mechanical-erosional discontinuity (ED) identified by regional structural analysis -- probably the most significant unconformity in any given area; 2) A time or age discontinuity (AD) identified by coarse sediments above the erosional unconformity containing lithified fragments of various sedimentary units found below the unconformity; 3) A tectonic discontinuity (TO), found at the erosional unconformity, distinguished by substantial regional tectonic disruption, especially at pre-Flood continental margins; 4) A sedimentary discontinuity (SO) consisting of a thick, fining-upward, clastic-to-chemical strata megasequence of regional to inter-regional extent defined at its base by a significant onlap unconformity; 5) A paleontological discontinuity (PO) marked by an increase in abundance of fossils and the first appearance of abundant plant, animal, and/or fungal fossils. In Grand Canyon of Arizona one of the most significant regional unconformities (ED) is found at or near the top of the Chuar Group. Associated with the unconformity is the Sixtymile Formation -- a tectonicsedimentary unit dominated by breccia with large clasts (TO) from the formations below it (AD). The Sixtymile Formation occurs at the bottom of a thick, regionally extensive series of strata called the Sauk Sequence, consisting of the fining-upward clastics, capped by carbonates (SO). Only low-abundance microfossils are known below the unconformity, whereas undisputed animal fossils occur only above the Sixtymile Formation, and there in great abundance (PO). We believe, therefore, that the Sixtymile Formation is the oldest preserved Flood deposit in Grand Canyon of Arizona. In the eastern Mojave Desert region of California, the Kingston Peak Formation is a very thick, regionally extensive clastic unit containing gigantic breccia clasts (TO) from the formations below it (AD). Associated with the ... |
| نوع الوثيقة: | text |
| وصف الملف: | application/pdf |
| اللغة: | unknown |
| Relation: | https://digitalcommons.cedarville.edu/icc_proceedings/vol3/iss1/5; https://digitalcommons.cedarville.edu/cgi/viewcontent.cgi?article=1316&context=icc_proceedings |
| الاتاحة: | https://digitalcommons.cedarville.edu/icc_proceedings/vol3/iss1/5 https://digitalcommons.cedarville.edu/cgi/viewcontent.cgi?article=1316&context=icc_proceedings |
| Rights: | http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| رقم الانضمام: | edsbas.D9E8E67D |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |