From Wikipedia, the free encyclopedia. An antecedent stream is a stream that maintains its original course and pattern despite the changes in underlying rock topography. A stream with a dendritic drainage pattern, for example, can be subject to slow tectonic uplift.
What is antecedent condition in research?
Definition. Antecedent conditions represent a temporary state within dynamic natural and social systems that precedes and influences the onset and magnitude of a hazard and its consequences. They are distinct from, but influenced by, what are commonly referred to as preconditions (preexisting conditions).
What is antecedent and consequent drainage pattern?
The Indus, Satluj, Ganga, Sarju (Kali), Arun (a tributary of Kosi), Tista and Brahmaputra are some of the important antecedent rivers, originating from beyond the Greater Himalayas. 2. Consequent Rivers. The Rivers which follow the general direction of slope are known as the consequent rivers.
What is an antecedent river explain with examples?
The Antecedent or Inconsequent Drainage – Rivers which existed before the upheaval of the Himalayas. They cut their courses southward making gorges in the mountain. Example – Indus, Ganga, Satluj, Saryu (Kali Ganga), Arun (tributary of Kosi), Tista. They originate from beyond the Himalayas.
What is discordant drainage system?
Discordant or Insequent drainage patterns. A drainage pattern is described as discordant if it does not correlate to the topology (surface relief features) and geology of the area. In simple words, in a discordant drainage pattern, the river follows its initial path irrespective of the changes in topography.
Which is called antecedent river?
The rivers that existed before the upheaval of the Himalayas are known as the antecedent rivers and cut their courses southward by building gorges in the mountains.
What is an example of an antecedent variable?
A variable that comes earlier in an explanation, or in a chain of causal links—as in a ∗path analysis. For example, if the dependent variable were occupation at age 50, education level would usually be an antecedent variable, and place of birth would be a variable antecedent to education.
What are antecedent factors?
In statistics and social sciences, an antecedent variable is a variable that can help to explain the apparent relationship (or part of the relationship) between other variables that are nominally in a cause and effect relationship.
What is discordant drainage pattern?
A drainage pattern is described as discordant if it does not correlate to the topology (surface relief features) and geology of the area. In simple words, in a discordant drainage pattern, the river follows its initial path irrespective of the changes in topography.
What is discordant drainage?
What is consequent drainage pattern?
A tributary stream that is eroded along an underlying belt of non-resistant rock after the main drainage pattern (Consequent River) has been established is known as a subsequent river. They are the subsequent drainage of the Ganga drainage system. These streams have generally developed after the original stream.
What is antecedent and consequent?
A consequent is the second half of a hypothetical proposition. In the standard form of such a proposition, it is the part that follows “then”. In an implication, if P implies Q, then P is called the antecedent and Q is called the consequent.
What is antecedent drainage in geography?
ANTECEDENT DRAINAGE. Also known as inconsequent drainage. In antecedent drainage, a part of a river slope and the surrounding area uplifts but the river maintains its original slope. This is done by the process of cutting through the uplifted portion (by river), which results into deep and narrow valleys.
What are antecedent rivers give an example?
A part of a river slope and the surrounding area gets uplifted and the river sticks to its original slope, cutting through the uplifted portion like a saw forming deep gorges like [Vertical erosion or Vertical down cutting]. Examples of antecedent rivers or drainage – Indus, Sutlej, Brahmaputra, and other Himalayan rivers.
What do you mean by inconsequent drainage?
Also called inconsequent drainage. A part of a river slope and the surrounding area gets uplifted and the river sticks to its original slope, cutting through the uplifted portion like a saw forming deep gorges like [Vertical erosion or Vertical down cutting].
What is the meaning of antecedent?
As the meaning of word Antecedent is “a thing that existed before”.. so here my friend it relates to the river. In simple words these rivers are those which are flowing in their usual path but then ..
