↓ Direkt till sidans innehåll
↓ Direkt till sidans sekundära innehåll (sidomenyn)

Träfflista för sökning "WFRF:(Milliken R.E.) "

Search: WFRF:(Milliken R.E.)

Result 1-3 of 3

Sort/group result

Sort by: Hits per page:

Enumeration	Reference	Cover	Find
1.	Farley, K.A., et al. (author) In situ radiometric and exposure age dating of the martian surface 2014 In: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 343:6169 Journal article (peer-reviewed)abstract We determined radiogenic and cosmogenic noble gases in a mudstone on the floor of Gale Crater. A K-Ar age of 4.21 ± 0.35 billion years represents a mixture of detrital and authigenic components and confirms the expected antiquity of rocks comprising the crater rim. Cosmic-ray-produced 3He, 21Ne, and 36Ar yield concordant surface exposure ages of 78 ± 30 million years. Surface exposure occurred mainly in the present geomorphic setting rather than during primary erosion and transport. Our observations are consistent with mudstone deposition shortly after the Gale impact or possibly in a later event of rapid erosion and deposition. The mudstone remained buried until recent exposure by wind-driven scarp retreat. Sedimentary rocks exposed by this mechanism may thus offer the best potential for organic biomarker preservation against destruction by cosmic radiation.
2.	Tate, C.G., et al. (author) Thermal conductivity of the near-surface Martian regolith derived from variations in MSL passive neutron counts and ground temperature measurements 2015 Conference paper (peer-reviewed)
3.	Vaniman, D.T., et al. (author) Mineralogy of a mudstone at Yellowknife Bay, Gale Crater, Mars 2014 In: Science. - : American Association for the Advancement of Science (AAAS). - 0036-8075 .- 1095-9203. ; 343:6169 Journal article (peer-reviewed)abstract Sedimentary rocks at Yellowknife Bay (Gale crater) on Mars include mudstone sampled by the Curiosity rover. The samples, John Klein and Cumberland, contain detrital basaltic minerals, calcium sulfates, iron oxide or hydroxides, iron sulfides, amorphous material, and trioctahedral smectites. The John Klein smectite has basal spacing of ~10 angstroms, indicating little interlayer hydration. The Cumberland smectite has basal spacing at both ~13.2 and ~10 angstroms. The larger spacing suggests a partially chloritized interlayer or interlayer magnesium or calcium facilitating H2O retention. Basaltic minerals in the mudstone are similar to those in nearby eolian deposits. However, the mudstone has far less Fe-forsterite, possibly lost with formation of smectite plus magnetite. Late Noachian/Early Hesperian or younger age indicates that clay mineral formation on Mars extended beyond Noachian time.

Skapa referenser, mejla, bekava och länka

Permalink

Result 1-3 of 3

Refine your search

Type of publication: journal article (2); conference paper (1)

Type of content: peer-reviewed (3)

Author/Editor: Martin-Torres, Javie ... (3); Gupta, S. (2); Grotzinger, J. P. (2); McLennan, S. M. (2); Stolper, E.M. (2); Edgett, K.S. (2); show more...; Williams, J (1); Malakhov, A (1); Anderson, R (1); Wimmer-Schweingruber ... (1); Steele, A. (1); Bell III, J. F. (1); Gellert, R. (1); Morris, R. V. (1); Grant, J. A. (1); Ming, D. W. (1); Yen, A. S. (1); Arvidson, R. (1); Pavlov, A. A. (1); Des Marais, D. J. (1); Ehlmann, B. L. (1); Farmer, J. D. (1); Schwenzer, S. P. (1); Zorzano, Maria Paz (1); Berger, G (1); Bish, D.L. (1); Blake, D.F. (1); Vaniman, D.T. (1); Chipera, S.J. (1); Treiman, A.H. (1); Sarrazin, P. (1); Morrison, S.M. (1); Downs, R.T. (1); Achilles, C.N. (1); Bristow, T.F. (1); Crisp, J.A. (1); Morookian, J.M. (1); Rampe, E.B. (1); Spanovich, N. (1); Drake, D (1); Maurice, S. (1); Newsom, H.E. (1); Litvak, M (1); Golovin, D. (1); Sanin, A. B. (1); Conrad, P.G. (1); Navarro-Gonzalez, R. (1); Vaniman, D. (1); Farley, K.A. (1); Malespin, C. (1); show less...

University: Luleå University of Technology (3)

Language: English (3)

Research subject (UKÄ/SCB): Natural sciences (2); Engineering and Technology (1)

Year

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

Copyright © LIBRIS - National Library Systems
LIBRIS.kb.se

pil uppåt

Close

Copy and save the link in order to return to this view