Local variations of bulk hydrogen and chlorine-equivalent neutron absorption content measured at the contact between the Sheepbed and Gillespie Lake units in Yellowknife Bay, Gale Crater, using the DAN instrument onboard Curiosity

M.L. Litvak; I.G. Mitrofanov; A.B. Sanin; D. Lisov; A. Behar; W.V. Boynton; L. DeFlores; F. Fedosov; D. Golovin; C. Hardgrove; K. Harshman; I. Jun; A.S. Kozyrev; R.O. Kuzmin; A. Malakhov; R. Milliken; M. Mischna; J. Moersch; M. Mokrousov; S. Nikiforov; V.N. Shvetsov; K. Stack; R. Starr; C. Tate; V.I. Tret'yakov; Andrey Vostrukhin; MSL Science Team

doi:10.1002/2013JE004556

Local variations of bulk hydrogen and chlorine-equivalent neutron absorption content measured at the contact between the Sheepbed and Gillespie Lake units in Yellowknife Bay, Gale Crater, using the DAN instrument onboard Curiosity

M.L. Litvak^* (Corresponding Author), I.G. Mitrofanov, A.B. Sanin, D. Lisov, A. Behar, W.V. Boynton, L. DeFlores, F. Fedosov, D. Golovin, C. Hardgrove, K. Harshman, I. Jun, A.S. Kozyrev, R.O. Kuzmin, A. Malakhov, R. Milliken, M. Mischna, J. Moersch, M. Mokrousov, S. NikiforovV.N. Shvetsov, K. Stack, R. Starr, C. Tate, V.I. Tret'yakov, Andrey Vostrukhin, MSL Science Team

^*Corresponding author for this work

Geology and Geophysics

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

Data gathered with the Dynamic Albedo of Neutron (DAN) instrument onboard rover Curiosity were analyzed for variations in subsurface neutron flux and tested for possible correlation with local geological context. A special DAN observation campaign was executed, in which 18 adjacent DAN active measurements were acquired every 0.75–1.0 m to search for the variations of subsurface hydrogen content along a 15 m traverse across geologic contacts between the Sheepbed and Gillespie Lake members of the Yellowknife Bay formation. It was found that several subunits in Sheepbed and Gillespie Lake could be characterized with different depth distributions of water-equivalent hydrogen (WEH) and different chlorine-equivalent abundance responsible for the distribution of neutron absorption elements. The variations of the average WEH at the top 60 cm of the subsurface are estimated at up to 2–3%. Chlorine-equivalent neutron absorption abundances ranged within 0.8–1.5%. The largest difference in WEH and chlorine-equivalent neutron absorption distribution is found between Sheepbed and Gillespie Lake.

Original language	English
Pages (from-to)	1259-1275
Number of pages	17
Journal	Journal of Geophysical Research - Planets
Volume	119
Issue number	6
Early online date	13 Jun 2014
DOIs	https://doi.org/10.1002/2013JE004556
Publication status	Published - Jun 2014

Bibliographical note

The DAN team is thankful to the highly professional MSL project team members, who have maximized opportunities for DAN measurements on Mars. We would like to express our special thanks to the Rover Planner Team, MSL engineers, and scientists who made these DAN measurements real. The DAN team very much appreciates the work of colleagues from the N.L. Dukhov Institute for Automatics for the development of the reliable PNG for this experiment. Also, the DAN team appreciates the valuable cooperative support of the two national space agencies, Roscosmos and NASA, which, working together, have made this Russian‐contributed instrument possible on an American rover. Finally, the team thanks the Curiosity science community, which provided essential comments and advice to the DAN team during numerous discussions.

Keywords

DAN
mars
Curiosity
neutrons

Access to Document

10.1002/2013JE004556Licence: Unspecified

http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-10160

Fingerprint

Dive into the research topics of 'Local variations of bulk hydrogen and chlorine-equivalent neutron absorption content measured at the contact between the Sheepbed and Gillespie Lake units in Yellowknife Bay, Gale Crater, using the DAN instrument onboard Curiosity'. Together they form a unique fingerprint.

Cite this

Litvak, M. L., Mitrofanov, I. G., Sanin, A. B., Lisov, D., Behar, A., Boynton, W. V., DeFlores, L., Fedosov, F., Golovin, D., Hardgrove, C., Harshman, K., Jun, I., Kozyrev, A. S., Kuzmin, R. O., Malakhov, A., Milliken, R., Mischna, M., Moersch, J., Mokrousov, M., ... MSL Science Team (2014). Local variations of bulk hydrogen and chlorine-equivalent neutron absorption content measured at the contact between the Sheepbed and Gillespie Lake units in Yellowknife Bay, Gale Crater, using the DAN instrument onboard Curiosity. Journal of Geophysical Research - Planets, 119(6), 1259-1275. https://doi.org/10.1002/2013JE004556

Local variations of bulk hydrogen and chlorine-equivalent neutron absorption content measured at the contact between the Sheepbed and Gillespie Lake units in Yellowknife Bay, Gale Crater, using the DAN instrument onboard Curiosity. / Litvak, M.L. (Corresponding Author); Mitrofanov, I.G.; Sanin, A.B. et al.
In: Journal of Geophysical Research - Planets, Vol. 119, No. 6, 06.2014, p. 1259-1275.

Research output: Contribution to journal › Article › peer-review

Litvak, ML, Mitrofanov, IG, Sanin, AB, Lisov, D, Behar, A, Boynton, WV, DeFlores, L, Fedosov, F, Golovin, D, Hardgrove, C, Harshman, K, Jun, I, Kozyrev, AS, Kuzmin, RO, Malakhov, A, Milliken, R, Mischna, M, Moersch, J, Mokrousov, M, Nikiforov, S, Shvetsov, VN, Stack, K, Starr, R, Tate, C, Tret'yakov, VI, Vostrukhin, A & MSL Science Team 2014, 'Local variations of bulk hydrogen and chlorine-equivalent neutron absorption content measured at the contact between the Sheepbed and Gillespie Lake units in Yellowknife Bay, Gale Crater, using the DAN instrument onboard Curiosity', Journal of Geophysical Research - Planets, vol. 119, no. 6, pp. 1259-1275. https://doi.org/10.1002/2013JE004556

Litvak ML, Mitrofanov IG, Sanin AB, Lisov D, Behar A, Boynton WV et al. Local variations of bulk hydrogen and chlorine-equivalent neutron absorption content measured at the contact between the Sheepbed and Gillespie Lake units in Yellowknife Bay, Gale Crater, using the DAN instrument onboard Curiosity. Journal of Geophysical Research - Planets. 2014 Jun;119(6):1259-1275. Epub 2014 Jun 13. doi: 10.1002/2013JE004556

Litvak, M.L. ; Mitrofanov, I.G. ; Sanin, A.B. et al. / Local variations of bulk hydrogen and chlorine-equivalent neutron absorption content measured at the contact between the Sheepbed and Gillespie Lake units in Yellowknife Bay, Gale Crater, using the DAN instrument onboard Curiosity. In: Journal of Geophysical Research - Planets. 2014 ; Vol. 119, No. 6. pp. 1259-1275.

@article{abcd9889b48d4349807a75563885fc3d,

title = "Local variations of bulk hydrogen and chlorine-equivalent neutron absorption content measured at the contact between the Sheepbed and Gillespie Lake units in Yellowknife Bay, Gale Crater, using the DAN instrument onboard Curiosity",

abstract = "Data gathered with the Dynamic Albedo of Neutron (DAN) instrument onboard rover Curiosity were analyzed for variations in subsurface neutron flux and tested for possible correlation with local geological context. A special DAN observation campaign was executed, in which 18 adjacent DAN active measurements were acquired every 0.75–1.0 m to search for the variations of subsurface hydrogen content along a 15 m traverse across geologic contacts between the Sheepbed and Gillespie Lake members of the Yellowknife Bay formation. It was found that several subunits in Sheepbed and Gillespie Lake could be characterized with different depth distributions of water-equivalent hydrogen (WEH) and different chlorine-equivalent abundance responsible for the distribution of neutron absorption elements. The variations of the average WEH at the top 60 cm of the subsurface are estimated at up to 2–3%. Chlorine-equivalent neutron absorption abundances ranged within 0.8–1.5%. The largest difference in WEH and chlorine-equivalent neutron absorption distribution is found between Sheepbed and Gillespie Lake.",

keywords = "DAN, mars, Curiosity, neutrons",

author = "M.L. Litvak and I.G. Mitrofanov and A.B. Sanin and D. Lisov and A. Behar and W.V. Boynton and L. DeFlores and F. Fedosov and D. Golovin and C. Hardgrove and K. Harshman and I. Jun and A.S. Kozyrev and R.O. Kuzmin and A. Malakhov and R. Milliken and M. Mischna and J. Moersch and M. Mokrousov and S. Nikiforov and V.N. Shvetsov and K. Stack and R. Starr and C. Tate and V.I. Tret'yakov and Andrey Vostrukhin and {MSL Science Team} and Javier Martin-Torres",

note = "The DAN team is thankful to the highly professional MSL project team members, who have maximized opportunities for DAN measurements on Mars. We would like to express our special thanks to the Rover Planner Team, MSL engineers, and scientists who made these DAN measurements real. The DAN team very much appreciates the work of colleagues from the N.L. Dukhov Institute for Automatics for the development of the reliable PNG for this experiment. Also, the DAN team appreciates the valuable cooperative support of the two national space agencies, Roscosmos and NASA, which, working together, have made this Russian‐contributed instrument possible on an American rover. Finally, the team thanks the Curiosity science community, which provided essential comments and advice to the DAN team during numerous discussions.",

year = "2014",

month = jun,

doi = "10.1002/2013JE004556",

language = "English",

volume = "119",

pages = "1259--1275",

journal = "Journal of Geophysical Research - Planets",

issn = "2169-9097",

publisher = "John Wiley & Sons",

number = "6",

}

TY - JOUR

T1 - Local variations of bulk hydrogen and chlorine-equivalent neutron absorption content measured at the contact between the Sheepbed and Gillespie Lake units in Yellowknife Bay, Gale Crater, using the DAN instrument onboard Curiosity

AU - Litvak, M.L.

AU - Mitrofanov, I.G.

AU - Sanin, A.B.

AU - Lisov, D.

AU - Behar, A.

AU - Boynton, W.V.

AU - DeFlores, L.

AU - Fedosov, F.

AU - Golovin, D.

AU - Hardgrove, C.

AU - Harshman, K.

AU - Jun, I.

AU - Kozyrev, A.S.

AU - Kuzmin, R.O.

AU - Malakhov, A.

AU - Milliken, R.

AU - Mischna, M.

AU - Moersch, J.

AU - Mokrousov, M.

AU - Nikiforov, S.

AU - Shvetsov, V.N.

AU - Stack, K.

AU - Starr, R.

AU - Tate, C.

AU - Tret'yakov, V.I.

AU - Vostrukhin, Andrey

AU - MSL Science Team

AU - Martin-Torres, Javier

N1 - The DAN team is thankful to the highly professional MSL project team members, who have maximized opportunities for DAN measurements on Mars. We would like to express our special thanks to the Rover Planner Team, MSL engineers, and scientists who made these DAN measurements real. The DAN team very much appreciates the work of colleagues from the N.L. Dukhov Institute for Automatics for the development of the reliable PNG for this experiment. Also, the DAN team appreciates the valuable cooperative support of the two national space agencies, Roscosmos and NASA, which, working together, have made this Russian‐contributed instrument possible on an American rover. Finally, the team thanks the Curiosity science community, which provided essential comments and advice to the DAN team during numerous discussions.

PY - 2014/6

Y1 - 2014/6

N2 - Data gathered with the Dynamic Albedo of Neutron (DAN) instrument onboard rover Curiosity were analyzed for variations in subsurface neutron flux and tested for possible correlation with local geological context. A special DAN observation campaign was executed, in which 18 adjacent DAN active measurements were acquired every 0.75–1.0 m to search for the variations of subsurface hydrogen content along a 15 m traverse across geologic contacts between the Sheepbed and Gillespie Lake members of the Yellowknife Bay formation. It was found that several subunits in Sheepbed and Gillespie Lake could be characterized with different depth distributions of water-equivalent hydrogen (WEH) and different chlorine-equivalent abundance responsible for the distribution of neutron absorption elements. The variations of the average WEH at the top 60 cm of the subsurface are estimated at up to 2–3%. Chlorine-equivalent neutron absorption abundances ranged within 0.8–1.5%. The largest difference in WEH and chlorine-equivalent neutron absorption distribution is found between Sheepbed and Gillespie Lake.

AB - Data gathered with the Dynamic Albedo of Neutron (DAN) instrument onboard rover Curiosity were analyzed for variations in subsurface neutron flux and tested for possible correlation with local geological context. A special DAN observation campaign was executed, in which 18 adjacent DAN active measurements were acquired every 0.75–1.0 m to search for the variations of subsurface hydrogen content along a 15 m traverse across geologic contacts between the Sheepbed and Gillespie Lake members of the Yellowknife Bay formation. It was found that several subunits in Sheepbed and Gillespie Lake could be characterized with different depth distributions of water-equivalent hydrogen (WEH) and different chlorine-equivalent abundance responsible for the distribution of neutron absorption elements. The variations of the average WEH at the top 60 cm of the subsurface are estimated at up to 2–3%. Chlorine-equivalent neutron absorption abundances ranged within 0.8–1.5%. The largest difference in WEH and chlorine-equivalent neutron absorption distribution is found between Sheepbed and Gillespie Lake.

KW - DAN

KW - mars

KW - Curiosity

KW - neutrons

U2 - 10.1002/2013JE004556

DO - 10.1002/2013JE004556

M3 - Article

SN - 2169-9097

VL - 119

SP - 1259

EP - 1275

JO - Journal of Geophysical Research - Planets

JF - Journal of Geophysical Research - Planets

IS - 6

ER -