Presentation is loading. Please wait.

Presentation is loading. Please wait.

NOTE ADDED BY JPL WEBMASTER: This content has not been approved or adopted by, NASA, JPL, or the California Institute of Technology. This document is being.

Published byGeoffrey Pyatt Modified over 10 years ago

Similar presentations

Presentation on theme: "NOTE ADDED BY JPL WEBMASTER: This content has not been approved or adopted by, NASA, JPL, or the California Institute of Technology. This document is being."— Presentation transcript:

1 NOTE ADDED BY JPL WEBMASTER: This content has not been approved or adopted by, NASA, JPL, or the California Institute of Technology. This document is being made available for information purposes only, and any views and opinions expressed herein do not necessarily state or reflect those of NASA, JPL, or the California Institute of Technology.

2 H. Clenet, C. Quantin, M. Andreani and P. Allemand 29/02/2012, Washington CARBONATE-BEARING CRUSTAL EXPOSURE IN AN IMPACT CRATER ASSOCIATED WITH AN OUTFLOW CHANNEL CONTEXT harold.clenet@univ-lyon1.fr cathy.quantin@univ-lyon1.fr

3

4

5

6

7 Map from Edwards et al., 2008, JGR Proposed landing site Olivine layer in Eos Chasma

8

9

10

11

12 R : LCPINDEX [0.05-0.14] G: HPCINDEX [0.05-0.23] B: OLINDEX [0.005-0.05]

13

14

15

16 From Ehlmann et al., 2008

17 « Direct » carbonation reactions High P CO 2 Serpentinization of olivine (fayalite + aqueous silica = serpentine) Carbonation of serpentine (serpentine + CO 2 = talc + magnésite) Serpentine and carbonation reactions Low P CO 2 Circulation of fluids enriched in CO 2 High P CO 2 then

18 © IPGP (CNRS, Univ Paris Diderot)/Università di Modena e Reggio Emilia Menez et al., Nature Geoscience 2012 Blue=hydrogarnet (Ca 3 Al 2 (SiO 4 ) 3-x (OH) 4x ) Green=serpentinized pyroxene Red=Ferric oxyde Yellow=organic molecules Serpentinization of olivine (forsterite + H 2 O = serpentine + brucite + magnetite) Carbonation of serpentine (serpentine + CO 2 = talc + magnésite) Serpentine and carbonation reactions Low P CO 2 High P CO 2 then Habitability?

19 Circulation of fluids enriched in CO 2 Hydrothermal systemHesperian aqueous activity Emplacement of the mafic unit Post-impact process ? Paleolake induced deposits High T° Low T°

20

21

22

23 Elevation Slope

24

25 -Primitive martian crust -Putative hydrothermal system and its exobiological niches -Outflow channel context

Download ppt "NOTE ADDED BY JPL WEBMASTER: This content has not been approved or adopted by, NASA, JPL, or the California Institute of Technology. This document is being."

Similar presentations

Acidic Weathering of Phyllosilicates Workshop on Martian Phyllosilicates CNES Paris, France Oct. 21 – 23, 2008 Travis Altheide *, Vincent Chevrier, and.

Acidic Weathering of Phyllosilicates Workshop on Martian Phyllosilicates CNES Paris, France Oct. 21 – 23, 2008 Travis Altheide *, Vincent Chevrier, and.
National Institute for Physics of Matter Università degli Studi di Modena e Reggio Emilia Bioengineering approach to the Balkan Syndrome Dr.Antonietta.

National Institute for Physics of Matter Università degli Studi di Modena e Reggio Emilia Bioengineering approach to the Balkan Syndrome Dr.Antonietta.
Sub-solidus evolution. Mineral transformations Secondary minerals Fluids expulsion and movement –Pegmatite/aplite veins –Mineralized veins Hydrothermal.

Sub-solidus evolution. Mineral transformations Secondary minerals Fluids expulsion and movement –Pegmatite/aplite veins –Mineralized veins Hydrothermal.
Back to silicate structures: nesosilicates inosilicates tectosilicates phyllosilicates cyclosilictaes sorosilicates.

Back to silicate structures: nesosilicates inosilicates tectosilicates phyllosilicates cyclosilictaes sorosilicates.
Mineral Structures Silicates are classified on the basis of Si-O polymerism the [SiO 4 ] 4- tetrahedron.

Mineral Structures Silicates are classified on the basis of Si-O polymerism the [SiO 4 ] 4- tetrahedron.
Dissolution and Precipitation

Dissolution and Precipitation
1 The Hesperian. 2 What’s important in the Late Noachian/Hesperian/Early Amazonian? Impact rate declining rapidly Volcanic resurfacing at a maximum? Hesperian.

1 The Hesperian. 2 What’s important in the Late Noachian/Hesperian/Early Amazonian? Impact rate declining rapidly Volcanic resurfacing at a maximum? Hesperian.
Australian Centre for Astrobiology. Hyperspectral and Field mapping of an Archean Serpentinized Komatiite unit in Western Australia Applications for CRISM.

Australian Centre for Astrobiology. Hyperspectral and Field mapping of an Archean Serpentinized Komatiite unit in Western Australia Applications for CRISM.
Local inversion of Martian magnetic anomalies : geological implications Y. Quesnel, C. Sotin, B. Langlais and S. Le Mouélic Laboratoire de Planétologie.

Local inversion of Martian magnetic anomalies : geological implications Y. Quesnel, C. Sotin, B. Langlais and S. Le Mouélic Laboratoire de Planétologie.
Welcome to the 30 th MEPAG Meeting! February 24-25, 2015 Lisa Pratt, MEPAG Chair Murray Formation Slopes of Mt. Sharp Pahrump Hills Curiosity: MSSS / JPL.

Welcome to the 30 th MEPAG Meeting! February 24-25, 2015 Lisa Pratt, MEPAG Chair Murray Formation Slopes of Mt. Sharp Pahrump Hills Curiosity: MSSS / JPL.
Remaining Uncertainties: Is there evidence of a shoreline/bench in Eberswalde crater corresponding to the elevation of the delta surface and the spillway.

Remaining Uncertainties: Is there evidence of a shoreline/bench in Eberswalde crater corresponding to the elevation of the delta surface and the spillway.
Early martian surface conditions from thermodynamics of phyllosilicates Vincent F. Chevrier Workshop on Martian Phyllosilicates: Recorders of Aqueous Processes?

Early martian surface conditions from thermodynamics of phyllosilicates Vincent F. Chevrier Workshop on Martian Phyllosilicates: Recorders of Aqueous Processes?
Martian Mineralogy: Important Minerals for Understanding Geological Processes on Mars Liz Rampe (NASA-JSC/ORAU) 9 July 2012

Martian Mineralogy: Important Minerals for Understanding Geological Processes on Mars Liz Rampe (NASA-JSC/ORAU) 9 July 2012
Formation of Carbonates in Martian Meteorite ALH 84001: Cool Water Near the Surface of Mars Secondary.

Formation of Carbonates in Martian Meteorite ALH 84001: Cool Water Near the Surface of Mars Secondary.
The Mawrth Vallis Phyllosilicates Within a Regional Context: Extent, stratigraphy, and mineralogy of Phyllosilicates around Mawrth Vallis and Western Arabia.

The Mawrth Vallis Phyllosilicates Within a Regional Context: Extent, stratigraphy, and mineralogy of Phyllosilicates around Mawrth Vallis and Western Arabia.
Refractories ©2009 Dr. B. C. Paul Credit is given to “Industrial Minerals” (SME), Geology.com, Yuprocks.com, Geology.about.com, Glendale Community College,

Refractories ©2009 Dr. B. C. Paul Credit is given to “Industrial Minerals” (SME), Geology.com, Yuprocks.com, Geology.about.com, Glendale Community College,
Minerals Review.

Minerals Review.
Descriptions of Rock Forming Minerals: All the following minerals are made of silica tetrahedrons, either alone or combined with other elements.

Descriptions of Rock Forming Minerals: All the following minerals are made of silica tetrahedrons, either alone or combined with other elements.
Fossil dunes being covered by active dunes (right) 1.Geological Mapping of Mars workshop (Tuscany; October 2009) 2.NASA/USGS Planetary Geologic Mapping.

Fossil dunes being covered by active dunes (right) 1.Geological Mapping of Mars workshop (Tuscany; October 2009) 2.NASA/USGS Planetary Geologic Mapping.
Mars Program Update James L. Green Acting Director, Mars Exploration Program NASA Headquarters May 13, 2014 NOTE ADDED BY JPL WEBMASTER: This content has.

Mars Program Update James L. Green Acting Director, Mars Exploration Program NASA Headquarters May 13, 2014 NOTE ADDED BY JPL WEBMASTER: This content has.

Similar presentations

Ads by Google