Sacajawea Patera

Short description: Venusian caldera

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages)

This article relies largely or entirely on a single source. Please help improve this article by introducing citations to additional sources.
Find sources: "Sacajawea Patera" – news · newspapers · books · scholar · JSTOR (March 2024)

|

This article includes a list of references, related reading or external links, but its sources remain unclear because it lacks inline citations. Please help to improve this article by introducing more precise citations. (March 2024) (Learn how and when to remove this template message)

|

(Learn how and when to remove this template message)

Sacajawea PateraFile:250px

Magellan radar image

Feature type| Patera
Coordinates|  [ ⚑ ] : 64°18′N 335°24′E﻿ / ﻿64.3°N 335.4°E﻿ / 64.3; 335.4
Diameter| 233 km
Eponym| Sacajawea
Color image of Sacajawea Petera

Sacajawea Patera is a large, elongate caldera located in Western Ishtar Terra on the smooth plateau of Lakshmi Planum, on the planet Venus. The image is centred at 64.5 degrees North latitude and 337 degrees East longitude. It is approximately 420 km (260 mi) wide at the base. Sacajawea is a depression approximately 1–2 kilometres (0.62–1.24 mi) deep and 120 by 215 kilometres (75 mi × 134 mi) in diameter; it is elongate in a southwest–northeast direction. The depression is bounded by a zone of circumferential curvilinear structures interpreted to be graben and fault scarps. These structures are spaced 0.5–4 kilometers (0.31–2.49 miles) apart, are 0.6–4.0 kilometers (0.37–2.49 miles) in width and up to 100 km (62 mi) in length.

Extending up to approximately 140 km (87 mi) in length from the southeast of the patera is a system of linear structures thought to represent a flanking rift zone along which the lateral injection and eruption of magma may have occurred. A shield edifice 12 km (7.5 mi) in diameter with a prominent central pit lies along the trend of one of these features.

The impact crater Zlata, approximately 6 km (3.7 mi) in diameter is located within the zone of graben to the northwest of the patera. Few flow features are observed in association with Sacajawea, possibly due to age and state of degradation of the flows. Mottled bright deposits 4–20 kilometers (2.5–12.4 miles) in width are located near the periphery and in the center of the patera floor within local topographic lows. Diffuse patches of dark material approximately 40 kilometers (25 mi) in width are observed southwest of the patera, superposed on portions of the surrounding graben.

The formation of Sacajawea is thought to be related to the drainage and collapse of a large magma chamber. Gravitational relaxation may have caused the resultant caldera to sag, producing the numerous faults and graben that circumscribe the patera. Regions of complex, highly deformed tessera-like terrain are located north and east of the patera and are seen in the upper portion of the image.

## References

* "Venus—A Large Elongated Caldera 'Sacajawea Patera". NASA/JPL. http://photojournal.jpl.nasa.gov/catalog/PIA00485. Retrieved 24 November 2010.

* v
* t
* e

Venus

* Outline of Venus

Geography|

| General|

* Arachnoid
* Atmosphere
* Dune fields
* Features
* Mapping of Venus

|

Regions|

| Regio|

* Alpha Regio
* Asteria Regio
* Beta Regio
* Ovda Regio

|

Terrae|

* Aphrodite Terra
* Ishtar Terra
* Lada Terra

Mountains
and
volcanoes|

* Abeona Mons
* Akna Montes
* Anala Mons
* Artemis Corona
* Ba'het Corona
* Boala Corona
* Ciuacoatl Mons
* Fand Mons
* Fotla Corona
* Gula Mons
* Heng-O Corona
* Iaso Tholus
* Irnini Mons
* Jaszai Patera
* Maat Mons
* Maxwell Montes
* Nightingale Corona
* Onatah Corona
* Ozza Mons
* Quetzalpetlatl Corona
* Pancake dome
* Renpet Mons
* Sacajawea Patera
* Sachs Patera
* Sapas Mons
* Santa Corona
* Scalloped margin dome
* Siddons Patera
* Sif Mons
* Skadi Mons
* Theia Mons
* Ushas Mons
* Zisa Corona
* List of coronae on Venus

Plains and
plateaus|

* Guinevere Planitia
* Lakshmi Planum
* Sedna Planitia

Canyons and
valleys|

* Aikhulu Chasma
* Artemis Chasma
* Baltis Vallis
* Dali Chasma
* Devana Chasma
* Diana Chasma
* Ganis Chasma

Craters|

* Addams
* Adivar
* Agnesi
* Alcott
* Ariadne
* Aurelia
* Balch
* Barton
* Buck
* Cleopatra
* Cunitz
* Danilova
* De Lalande
* Dickinson
* Goeppert-Mayer
* Golubkina
* Grimke
* Gregory
* Guilbert
* Isabella
* Jeanne
* Maria Celeste
* Mariko
* Mead
* Meitner
* Merit Ptah
* Mona Lisa
* Nanichi
* Riley
* Ruth
* Stefania
* Wanda
* Wheatley
* Yablochkina

Other|

* Geodynamics
* Geology
* Surface features
* Venus snow
* Venusquake

Moons|

* Neith (hypothetical moon)

Astronomy|

| General|

* Aspects
* Orbit
* Phases

|

Transits|

* 1631
* 1639
* 1769
* 1874
* 1882
* 2004
* 2012

Asteroids|

* Venus-crosser asteroid
* 2002 VE68

Exploration|

| Past|

* Sputnik programme
* Sputnik 7
* Venera program
* Venera 1
* Sputnik 19
* Sputnik 20
* Sputnik 21
* Kosmos 21
* Venera 1964A
* Kosmos 27
* Venera 2
* Venera 3
* Kosmos 96
* Venera 4
* Kosmos 167
* Venera 5
* Venera 6
* Venera 7
* Venera 8
* Kosmos 482
* Venera 9
* Venera 10
* Venera 11
* Venera 12
* Venera 13
* Venera 14
* Venera 15
* Venera 16
* Mariner program
* Mariner 1
* Mariner 2
* Mariner 5
* Mariner 10
* Zond program
* Zond 1
* Pioneer Venus
* Pioneer Venus Orbiter / Pioneer 12
* Pioneer Venus Multiprobe / Pioneer 13
* Vega program
* Vega 1
* Vega 2
* Magellan
* Galileo
* Cassini–Huygens
* IKAROS
* MESSENGER
* Shin'en
* Venus Express

|

Current|

* Akatsuki
* BepiColombo

Planned|

* Venera-D

Proposed|

* EnVision
* European Venus Explorer
* VAMP
* VISE
* VISAGE
* VICI
* VOX
* Shukrayaan-1

Proposed
crewed|

* Colonization
* Inspiration Mars (flyby)
* Terraforming

Other|

* Geological mapping of Venus
* Artificial objects on Venus

Related|

* Cytherean
* culture
* Fiction
* Hesperus
* Life
* Mythology
* Phosphorus
* Venusians

* Book
* Category
* Portal

0.00

(0 votes)

Original source: https://en.wikipedia.org/wiki/Sacajawea Patera. Read more

|

Retrieved from "https://handwiki.org/wiki/index.php?title=Astronomy:Sacajawea_Patera&oldid=3926630"
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template