Ganges Mensa

Ganges Mensa (also occasionally termed Gangis Mensa in literature [2] [3] ) is a mesa and an interior layered deposit in Ganges Chasma , one of the peripheral valleys of Valles Marineris on Mars . The mesa rises up to 4km from the floor of Ganges Chasma, nearly to the same elevation as the surrounding plateaux of Lunae Planum . Like Hebes Mensa , the mesa is completely separated from the surrounding canyon walls, and has sustained significant erosion that has caused it to retreat significantly in areal extent. The mesa is composed of friable , thinly-layered units which decompose into fluted patternations, interpreted by most researchers as erosional aeolian features known as yardangs . It is capped by a more resistant layer that is interpreted by many researchers to be volcanic in origin. Although the mesa is understood to have formed through some combination of volcanism and sedimentary deposition, there is ongoing contention over whether the volcanism associated with the mesa occurred subglacially (into an ice mega laccolith ) or subaqueously (into a paleolake). Those who favor the subglacial hypothesis believe that Ganges Mensa is a tuya that is extremely similar to analogues observed in the Azas Plateau of Tuva , Russia .

Page Revisions

Year Metadata Sections Top Words First Paragraph
2018

146365 characters

10 sections

31 paragraphs

6 images

751 internal links

14 external links

1. Context

2. Geology

3. Observational history

4. References

ganges 0.629

mensa 0.477

mesa 0.203

chasma 0.137

beyer 0.127

marineris 0.116

layered 0.112

hebes 0.102

tuyas 0.095

valles 0.078

researchers 0.078

ilds 0.076

signatures 0.073

deposits 0.073

abstract 0.072

Ganges Mensa (also occasionally termed Gangis Mensa in literature [2] [3] ) is a mesa and an interior layered deposit in Ganges Chasma , one of the peripheral valleys of Valles Marineris on Mars . The mesa rises up to 4km from the floor of Ganges Chasma, nearly to the same elevation as the surrounding plateaux of Lunae Planum . Like Hebes Mensa , the mesa is completely separated from the surrounding canyon walls, and has sustained significant erosion that has caused it to retreat significantly in areal extent. The mesa is composed of friable , thinly-layered units which decompose into fluted patternations, interpreted by most researchers as erosional aeolian features known as yardangs . It is capped by a more resistant layer that is interpreted by many researchers to be volcanic in origin. Although the mesa is understood to have formed through some combination of volcanism and sedimentary deposition, there is ongoing contention over whether the volcanism associated with the mesa occurred subglacially (into an ice mega laccolith ) or subaqueously (into a paleolake). Those who favor the subglacial hypothesis believe that Ganges Mensa is a tuya that is extremely similar to analogues observed in the Azas Plateau of Tuva , Russia .

2017

28538 characters

1 sections

2 paragraphs

7 images

151 internal links

3 external links

1. References

mensa 0.738

prominence 0.287

ganges 0.261

topped 0.240

coprates 0.214

140 0.189

cliff 0.187

edges 0.178

48 0.148

flat 0.133

classical 0.133

albedo 0.102

feature 0.090

term 0.085

7 0.059

Ganges Mensa is a mensa in the Coprates quadrangle of Mars, located at 7.2° S and 48.8° W. It is 140.0 km across and was named after a classical albedo feature name. [1] The term "Mensa" is used for a flat-topped prominence with cliff-like edges. [2]

2014

26521 characters

1 sections

2 paragraphs

7 images

150 internal links

1 external links

1. References

mensa 0.720

ganges 0.382

coprates 0.314

140 0.276

48 0.216

classical 0.194

albedo 0.150

feature 0.132

7 0.087

8 0.087

0 0.079

quadrangle 0.075

2 0.061

located 0.061

named 0.041

Ganges Mensa is a mensa in the Coprates quadrangle of Mars, located at 7.2° S and 48.8° W. It is 140.0 km across and was named after a classical albedo feature name. [1]

2013

25689 characters

1 sections

2 paragraphs

6 images

150 internal links

1 external links

1. References

mensa 0.720

ganges 0.382

coprates 0.314

140 0.276

48 0.216

classical 0.194

albedo 0.150

feature 0.132

7 0.087

8 0.087

0 0.079

quadrangle 0.075

2 0.061

located 0.061

named 0.041

Ganges Mensa is a mensa in the Coprates quadrangle of Mars, located at 7.2° S and 48.8° W. It is 140.0 km across and was named after a classical albedo feature name. [1]

2011

5790 characters

1 sections

2 paragraphs

3 images

8 internal links

1 external links

1. References

mensa 0.720

ganges 0.382

coprates 0.314

140 0.276

48 0.216

classical 0.194

albedo 0.150

feature 0.132

7 0.087

8 0.087

0 0.079

quadrangle 0.075

2 0.061

located 0.061

named 0.041

Ganges Mensa is a mensa in the Coprates quadrangle of Mars, located at 7.2° S and 48.8° W. It is 140.0 km across and was named after a classical albedo feature name. [1]

2009

5848 characters

1 sections

2 paragraphs

3 images

8 internal links

1 external links

1. References

mensa 0.745

ganges 0.527

coprates 0.216

140 0.191

48 0.149

classical 0.134

albedo 0.103

feature 0.091

hirise 0.085

7 0.060

8 0.060

0 0.054

quadrangle 0.052

2 0.042

located 0.042

Ganges Mensa is a mensa in the Coprates quadrangle of Mars, located at 7.2° S and 48.8° W. It is 140.0 km across and was named after a classical albedo feature name. [1]