A geomorphic history based on topographic map evidence Abstract: This is an overview essay providing highlights from more detailed essays illustrating and describing the origin of the Marais des Cygnes River and tributary valleys and their drainage divides. The more detailed essays can be found under Marais des Cygnes River on this website’s sidebar category […]
Category archives for Missouri
A geomorphic history based on topographic map evidence Abstract: This overview essay provides highlights from a series of more detailed essays in which topographic map evidence is interpreted to determine Osage River drainage basin landform origins. The more detailed essays are found under Osage River on this website’s sidebar category list. The Osage River is […]
A geomorphic history based on topographic map evidence Abstract: This overview essay provides highlights of more detailed essays (found under MO Missouri River on sidebar category list) describing drainage divide areas for Missouri River tributaries downstream from Kansas City. Each of the detailed essays uses topographic map interpretation methods to determine origins of landform features […]
A geomorphic history based on topographic map evidence Abstract: This overview essay provides highlights from more detailed essays describing drainage divide areas for the Iowa and Missouri Platte River drainage basin (which should not be confused with the Nebraska Platte River drainage basin, which is addressed by a separate overview essay and separate more detailed […]
A geomorphic history based on topographic map evidence Abstract: This essay provides an overview of information contained in more detailed essays found under Chariton River on the sidebar category list. The more detailed essays interpret landform origins based on Chariton River drainage basin topographic map evidence. The Chariton River originates in southern Iowa as an […]
A geomorphic history based on topographic map evidence Abstract: This overview essay provides highlights of more detailed essays illustrating and describing Iowa and Missouri Grand River drainage basin topographic map evidence which is then interpreted to determine Iowa and Missouri Grand River drainage basin landform origins (the Iowa and Missouri Grand River should not be […]
Gasconade River drainage basin area landform origins, Missouri, USA, Overview Essay
A geomorphic history based on topographic map evidence
The Gasconade River is a northeast and north-northeast oriented Missouri River tributary and flows from near Seymour, Missouri to join the east-oriented Missouri River, near Gasconade, Missouri. Major Gasconade River tributaries include north-oriented the Osage Fork, Roubidoux Creek, and the Big Piney River. This Gasconade River knol collection provides a summary of knols describing landform origins for all drainage divides surrounding the Gasconade River drainage basin. Knols being summarized are based entirely on illustrated topographic map evidence and interpret landform origins from a previously unexplored perspective of a deep glacial erosion and a thick ice sheet that melted fast paradigm. Topographic map evidence shown and discussed in these knols documents how the deep Gasconade River valley and its north-oriented tributary valleys were eroded by systematic reversals of an immense south-oriented flood, which was derived from a rapidly melting North American ice sheet. Prior to headward erosion of the deep Missouri River valley flood waters flowed south across what is now the Gasconade River drainage basin to what was then the newly eroded southeast-oriented White River valley and what were then actively eroding south-oriented White River tributary valleys. Headward erosion of the deep east-oriented Missouri River valley beheaded the south-oriented flood flow routes in sequence from east to west. Flood waters on north ends of beheaded flood flow routes reversed flow direction to erode deep north-oriented valleys. The actively eroding north-oriented valleys captured significant south-oriented flood flow from west of the actively eroding Missouri River valley head. The captured flood water moved in southeast, east, and northeast directions and caused the north-oriented valleys, such as the Gasconade River valley, to erode headward toward the southwest and to also behead south-oriented flood flow routes in sequence from east to west. The Gasconade River valley was able to erode headward for a significant distance faster than the actively eroding Missouri River valley and its Osage River tributary valley were able to behead south-oriented flood flow routes supplying flood waters to the actively eroding Gasconade River valley. Headward erosion of the deep Osage River valley from the actively eroding Missouri River valley finally beheaded and captured all flood flow routes to the what had been the actively eroding Gasconade River valley. Knols in this collection illustrate and discuss how topographic map evidence including positions and orientations of present day valleys, the nature of Gasconade River valley and tributary valley meanders, and through valleys crossing present day drainage divides, all provide evidence supporting this flood origin interpretation.
Abstract: The Little Osage River-Spring River drainage divide area in Vernon, Barton, and Jasper Counties, Missouri is also the divide between the Missouri River drainage basin to the north and the Arkansas River drainage basin to the south. The Vernon, Barton, and Jasper Counties area was crossed by immense south-oriented floods derived from a rapidly […]
Abstract: The South Grand River-Little Osage River drainage divide area in Cass, Bates, and Vernon Counties, Missouri is located just east of the north-south oriented Kansas-Missouri state line and was eroded by immense south-oriented floods. Flood waters were derived from a rapidly melting North American ice sheet and were captured by headward erosion of deep […]
Abstract: The Missouri River-Osage River drainage divide area in Jackson and Cass Counties, Missouri is in reality the Missouri River-South Grand River drainage divide area with the South Grand River being a southeast-oriented Osage River tributary. The Missouri River-South Grand River drainage divide area was eroded by immense south oriented floods from a rapidly melting North […]
Abstract: The Missouri River-Blackwater River drainage divide in Lafayette and Johnson Counties, Missouri is a west to east oriented drainage divide between the east-northeast and southeast oriented Missouri River to the north and the east, northeast, and east oriented Blackwater River to the south. The drainage divide area was eroded by immense south oriented floods derived […]
Abstract: The Blackwater River-South Grand River drainage divide area in Johnson and Henry Counties, Missouri is actually the Blackwater River-Osage River drainage divide area and was eroded by immense south oriented floods derived from a rapidly melting North American ice sheet. Flood waters in Henry County were captured by headward erosion of the deep Osage River-South […]
Abstract: The South Grand River-Osage River drainage divide area in Henry, St Clair, and Benton Counties is located upstream from Harry S. Truman Dam and Harry S. Truman Reservoir floods the South Grand River and Osage River valleys. The Osage River and South Grand River valleys and tributary valleys were eroded during immense south-oriented floods […]
Abstract: The Clear Creek-Sac River drainage divide area in St Clair, Vernon, and Cedar Counties, Missouri is located south of the east-oriented Osage River and was eroded by immense south-oriented floods prior to Osage River valley headward erosion. Flood waters were derived from a rapidly melting North American ice sheet and prior to Osage River […]
Abstract: The Sac River-Spring River drainage divide area in Barton, Dade, and Lawrence Counties, Missouri is the drainage divide between the Missouri River drainage basin to the north and the Arkansas River drainage basin to the south. Immediately south of the Spring River headwaters area is the southeast oriented White River drainage basin, which east of […]
Abstract: The Little Sac River-James River drainage divide area in Dade, Polk, and Greene Counties, Missouri is the divide between the Missouri River drainage basin to the north and the White River drainage basin to the south. The drainage divide area was eroded by immense south-oriented flood flow from a rapidly melting North American ice […]
Abstract: The Weaubleau Creek-Little Sac River drainage divide area in St Clair, Hickory, Cedar, and Polk Counties, Missouri is located south of the Osage River and east of the Sac River and is drained primarily by north and northwest oriented streams. The north and northwest oriented stream valleys were eroded during a massive reversal of […]
Abstract: The Osage River-Weaubleau Creek drainage divide in St Clair, Benton, and Hickory Counties is bounded on the east by the north-oriented Pomme de Terre River, on the west by north, northwest, and north oriented Weaubleau Creek, and on the north by the east-oriented Osage River, and is drained primarily by north-oriented streams. North-oriented valleys […]
Abstract: The Little Sac River-Pomme de Terre River drainage divide area in Polk, Dallas, Greene, and Webster Counties, Missouri is the drainage divide between two north-oriented Osage River tributaries and evolved during a massive reversal of an immense south-oriented flood. South-oriented flood waters were derived from a rapidly melting North American ice sheet and flowed […]
Abstract: The Osage River-Little Niangua River drainage divide area in Benton, Camden, Hickory, and Dallas Counties, Missouri is bounded by the Osage River in the north, the Pomme de Terre River in the west, and the north and east oriented Little Niangua River, which flows into the north-oriented Niangua River, in the east and south. […]
Abstract: The Pomme de Terre River-Niangua River drainage divide area in Polk, Dallas, and Webster Counties, Missouri is the southern half of the drainage divide between two north-oriented Osage River tributaries and was eroded and created during a massive reversal of an immense south oriented flood. The south oriented flood waters were derived from a rapidly melting […]
Abstract: The Osage River-Dry Auglaize Creek drainage divide area in Camden, Miller, and Laclede Counties, Missouri is bounded on the north by the east oriented Osage River, on the west by the north oriented Niangua River, and on the east and south by north and east-northeast oriented Dry Auglaize Creek, and was eroded by a massive reversal […]
Abstract: The Niangua River-Osage Fork (Gasconade River) drainage divide area in Dallas, Laclede, and Webster Counties, Missouri is the drainage divide between a north-oriented Osage River tributary to the west and a northwest and northeast oriented Gasconade River tributary to the east and was eroded by immense south-oriented floods which were beheaded and reversed by […]
Abstract: The Osage Fork (Gasconade River)-Gasconade River drainage divide area in Laclede, Pulaski, Webster, and Wright Counties, Missouri was eroded by immense south-oriented floods, which flowed across the entire state of Missouri and adjacent states. Flood waters were derived from a rapidly melting North American ice sheet and were captured in sequence from south to […]
Abstract: The Gasconade River-White River drainage divide in Webster, Wright, and Douglas Counties, Missouri consists of an asymmetric west-to-east oriented drainage divide between the south-oriented White River drainage basin and the north-oriented Gasconade River drainage basin and an asymmetric north-to-south oriented drainage divide between east oriented Gasconade River drainage basin and the west-oriented White River drainage […]