Editing Hydrogeology of Democratic Republic of the Congo

Jump to navigation Jump to search

Warning: You are not logged in. Your IP address will be publicly visible if you make any edits. If you log in or create an account, your edits will be attributed to your username, along with other benefits.

The edit can be undone. Please check the comparison below to verify that this is what you want to do, and then save the changes below to finish undoing the edit.

This page supports semantic in-text annotations (e.g. "[[Is specified as::World Heritage Site]]") to build structured and queryable content provided by Semantic MediaWiki. For a comprehensive description on how to use annotations or the #ask parser function, please have a look at the getting started, in-text annotation, or inline queries help pages.

Latest revision Your text
Line 244: Line 244:
  
 
====Unconsolidated or Consolidated Sedimentary - Intergranular Flow ====
 
====Unconsolidated or Consolidated Sedimentary - Intergranular Flow ====
 
+
Most of these sediments are unconsolidated, but in some areas they form weakly consolidated sandstone. All are dominated by intergranular flow.
Most of the Quaternary and Tertiary sediments are unconsolidated, but in some areas they form weakly consolidated sandstone. The Cretaceous rocks form consolidated sandstones. All are dominated by intergranular flow.  
 
 
 
 
{| class = "wikitable"
 
{| class = "wikitable"
 
|Named Aquifers||Aquifer Productivity||General Description
 
|Named Aquifers||Aquifer Productivity||General Description
Line 263: Line 261:
  
 
The Tertiary-Quaternary aquifer in the Batékés Plateau and southeast Kasaï areas consists mainly of semi-continuous sandy loam and soft sandstone, is up to 100 m thick. It has relatively low productivity, with transmissivity values from test pumping generally less than 50 m<sup>2</sup>/day, and borehole yields usually less than 0.01 l/s, sometimes up to 0.5 l/s (1 to 45 m<sup>3</sup>day). However, it sustains many streams by baseflow. Recharge is largely from direct rainfall infiltration, with limited local river bed infiltration.
 
The Tertiary-Quaternary aquifer in the Batékés Plateau and southeast Kasaï areas consists mainly of semi-continuous sandy loam and soft sandstone, is up to 100 m thick. It has relatively low productivity, with transmissivity values from test pumping generally less than 50 m<sup>2</sup>/day, and borehole yields usually less than 0.01 l/s, sometimes up to 0.5 l/s (1 to 45 m<sup>3</sup>day). However, it sustains many streams by baseflow. Recharge is largely from direct rainfall infiltration, with limited local river bed infiltration.
 +
|}
 +
 +
==== Sedimentary - Intergranular & Fracture Flow====
 +
{| class = "wikitable"
 +
|Named Aquifers||Aquifer Productivity||General Description
 
|-
 
|-
 
|Cretaceous sandstones
 
|Cretaceous sandstones
Line 271: Line 274:
  
 
Recharge is largely from direct rainfall infiltration and locally from riverbed infiltration.
 
Recharge is largely from direct rainfall infiltration and locally from riverbed infiltration.
|}
 
 
==== Sedimentary - Intergranular & Fracture Flow====
 
{| class = "wikitable"
 
|Named Aquifers||Aquifer Productivity||General Description
 
 
|-
 
|-
 
|Mesozoic-Palaeozoic sandstones
 
|Mesozoic-Palaeozoic sandstones

Please note that all contributions to Earthwise may be edited, altered, or removed by other contributors. If you do not want your writing to be edited mercilessly, then do not submit it here.
You are also promising us that you wrote this yourself, or copied it from a public domain or similar free resource (see Earthwise:Copyrights for details). Do not submit copyrighted work without permission!

Cancel Editing help (opens in new window)

  [] · [[]] · [[|]] · {{}} · · “” ‘’ «» ‹› „“ ‚‘ · ~ | ° &nbsp; · ± × ÷ ² ³ ½ · §
[[Category:]] · [[:File:]] · <code></code> · <syntaxhighlight></syntaxhighlight> · <includeonly></includeonly> · <noinclude></noinclude> · #REDIRECT[[]] · <translate></translate> · <languages/> · ==References== · {{reflist}} · ==Footnote== · {{reflist|group=note}} · <ref group=note> · __notoc__ · {{DEFAULTSORT:}} <div class="someclass noprint"></div> {{clear}} <br>