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2. The Winchcombe meteorite, a unique and pristine witness from the outer solar system

Author

King, Ashley J, Daly, Luke, Rowe, James, Joy, Katherine H, Greenwood, Richard C, Devillepoix, Hadrien AR, Suttle, Martin D, Chan, Queenie HS, Russell, Sara S, Bates, Helena C, Bryson, James FJ, Clay, Patricia L, Vida, Denis, Lee, Martin R, O'Brien, Áine, Hallis, Lydia J, Stephen, Natasha R, Tartèse, Romain, Sansom, Eleanor K, Towner, Martin C, Cupak, Martin, Shober, Patrick M, Bland, Phil A, Findlay, Ross, Franchi, Ian A, Verchovsky, Alexander B, Abernethy, Feargus AJ, Grady, Monica M, Floyd, Cameron J, Van Ginneken, Matthias, Bridges, John, Hicks, Leon J, Jones, Rhian H, Mitchell, Jennifer T, Genge, Matthew J, Jenkins, Laura, Martin, Pierre-Etienne, Sephton, Mark A, Watson, Jonathan S, Salge, Tobias, Shirley, Katherine A, Curtis, Rowan J, Warren, Tristram J, Bowles, Neil E, Stuart, Finlay M, Di Nicola, Luigia, Györe, Domokos, Boyce, Adrian J, Shaw, Kathryn MM, Elliott, Tim, Steele, Robert CJ, Povinec, Pavel, Laubenstein, Matthias, Sanderson, David, Cresswell, Alan, Jull, Anthony JT, Sýkora, Ivan, Sridhar, Sanjana, Harrison, Richard J, Willcocks, Francesca M, Harrison, Catherine S, Hallatt, Daniel, Wozniakiewicz, Penny J, Burchell, Mark J, Alesbrook, Luke S, Dignam, Aishling, Almeida, Natasha V, Smith, Caroline L, Clark, Brett, Humphreys-Williams, Emma R, Schofield, Paul F, Cornwell, Luke T, Spathis, Vassilia, Morgan, Geraint H, Perkins, Mark J, Kacerek, Richard, Campbell-Burns, Peter, Colas, Francois, Zanda, Brigitte, Vernazza, Pierre, Bouley, Sylvain, Jeanne, Simon, Hankey, Mike, Collins, Gareth S, Young, John S, Shaw, Clive, Horak, Jana, Jones, Dave, James, Nick, Bosley, Steve, Shuttleworth, Alan, Dickinson, Paul, McMullan, Ian, Robson, Derek, Smedley, Andrew RD, Stanley, Ben, Bassom, Richard, McIntyre, Mark, Suttle, Adam A, Fleet, Richard, Bastiaens, Luc, Ihász, Míra B, McMullan, Sarah, Boazman, Sarah J, Dickeson, Zach I, Grindrod, Peter M, Pickersgill, Annemarie E, Weir, Colin J, Suttle, Fiona M, Farrelly, Sarah, Spencer, Ieun, Naqvi, Sheeraz, Mayne, Ben, Skilton, Dan, Kirk, Dan, Mounsey, Ann, Mounsey, Sally E, Mounsey, Sarah, Godfrey, Pamela, Bond, Lachlan, Bond, Victoria, Wilcock, Cathryn, Wilcock, Hannah, Wilcock, Rob, King, Ashley J [0000-0001-6113-5417], Daly, Luke [0000-0002-7150-4092], Joy, Katherine H [0000-0003-4992-8750], Greenwood, Richard C [0000-0002-5544-8027], Devillepoix, Hadrien AR [0000-0001-9226-1870], Suttle, Martin D [0000-0001-7165-2215], Chan, Queenie HS [0000-0001-7205-8699], Russell, Sara S [0000-0001-5531-7847], Bates, Helena C [0000-0002-0469-9483], Bryson, James FJ [0000-0002-5675-8545], Vida, Denis [0000-0003-4166-8704], Lee, Martin R [0000-0002-6004-3622], O'Brien, Áine [0000-0002-2591-7902], Hallis, Lydia J [0000-0001-6455-8415], Stephen, Natasha R [0000-0003-3952-922X], Tartèse, Romain [0000-0002-3490-9875], Sansom, Eleanor K [0000-0003-2702-673X], Towner, Martin C [0000-0002-8240-4150], Cupak, Martin [0000-0003-2193-0867], Shober, Patrick M [0000-0003-4766-2098], Bland, Phil A [0000-0002-4681-7898], Findlay, Ross [0000-0001-7794-1819], Franchi, Ian A [0000-0003-4151-0480], Verchovsky, Alexander B [0000-0002-3532-5003], Abernethy, Feargus AJ [0000-0001-7210-3058], Grady, Monica M [0000-0002-4055-533X], Floyd, Cameron J [0000-0001-5986-491X], Van Ginneken, Matthias [0000-0002-2508-7021], Bridges, John [0000-0002-9579-5779], Hicks, Leon J [0000-0002-2464-0948], Jones, Rhian H [0000-0001-8238-9379], Mitchell, Jennifer T [0000-0002-5922-2463], Genge, Matthew J [0000-0002-9528-5971], Jenkins, Laura [0000-0003-0886-8667], Martin, Pierre-Etienne [0000-0003-1848-9695], Sephton, Mark A [0000-0002-2190-5402], Watson, Jonathan S [0000-0003-0354-1729], Salge, Tobias [0000-0002-4414-4917], Shirley, Katherine A [0000-0003-0669-7497], Curtis, Rowan J [0000-0002-9554-3053], Warren, Tristram J [0000-0003-3877-0046], Bowles, Neil E [0000-0001-5400-1461], Stuart, Finlay M [0000-0002-6395-7868], Di Nicola, Luigia [0000-0002-7596-474X], Györe, Domokos [0000-0003-4438-8361], Boyce, Adrian J [0000-0002-9680-0787], Shaw, Kathryn MM [0000-0002-3847-9382], Elliott, Tim [0000-0002-0984-0191], Steele, Robert CJ [0000-0003-1406-6855], Povinec, Pavel [0000-0003-0275-794X], Laubenstein, Matthias [0000-0001-5390-4343], Sanderson, David [0000-0002-9615-4412], Cresswell, Alan [0000-0002-5100-8075], Jull, Anthony JT [0000-0002-4079-4947], Sýkora, Ivan [0000-0003-3447-5621], Sridhar, Sanjana [0000-0003-1179-2093], Harrison, Richard J [0000-0003-3469-762X], Willcocks, Francesca M [0000-0002-3726-0258], Hallatt, Daniel [0000-0002-4426-9891], Wozniakiewicz, Penny J [0000-0002-1441-4883], Burchell, Mark J [0000-0002-2680-8943], Alesbrook, Luke S [0000-0001-9892-281X], Dignam, Aishling [0000-0001-5408-9061], Almeida, Natasha V [0000-0003-4871-8225], Smith, Caroline L [0000-0001-7005-6470], Humphreys-Williams, Emma R [0000-0002-1397-5785], Schofield, Paul F [0000-0003-0902-0588], Cornwell, Luke T [0000-0003-1428-2160], Spathis, Vassilia [0000-0002-5745-4383], Morgan, Geraint H [0000-0002-7580-6880], Campbell-Burns, Peter [0000-0001-8544-728X], Zanda, Brigitte [0000-0002-4210-7151], Vernazza, Pierre [0000-0002-2564-6743], Bouley, Sylvain [0000-0003-0377-5517], Collins, Gareth S [0000-0002-6087-6149], Young, John S [0000-0001-6583-7643], Horak, Jana [0000-0002-0492-2235], Jones, Dave [0000-0002-7215-0521], Bosley, Steve [0000-0002-9478-8518], Dickinson, Paul [0000-0003-0078-0919], McMullan, Ian [0000-0002-5579-8115], Robson, Derek [0000-0001-7807-9853], Smedley, Andrew RD [0000-0001-7137-6628], McIntyre, Mark [0000-0002-5769-4280], Suttle, Adam A [0000-0002-6075-976X], Fleet, Richard [0000-0002-8366-7673], McMullan, Sarah [0000-0002-7194-6317], Boazman, Sarah J [0000-0003-4694-0818], Dickeson, Zach I [0000-0001-9116-2571], Grindrod, Peter M [0000-0002-0934-5131], Pickersgill, Annemarie E [0000-0001-5452-2849], Suttle, Fiona M [0000-0003-1970-0034], Wilcock, Cathryn [0000-0001-7731-2860], Wilcock, Hannah [0000-0002-1043-2267], Wilcock, Rob [0000-0001-8977-7956], Apollo - University of Cambridge Repository, Science and Technology Facilities Council (STFC), and University of St Andrews. School of Earth & Environmental Sciences

Subjects
MCC, QC Physics, Multidisciplinary, 5101 Astronomical Sciences, NDAS, QB Astronomy, 37 Earth Sciences, 3705 Geology, 5109 Space Sciences, 51 Physical Sciences, QC, QB
Abstract

Funding: This study was supported by urgency funding from the U.K.’s Science and Technology Facilities Council (STFC) as part of the project “Curation and Preliminary Examination of the Winchcombe Carbonaceous Chondrite Fall.” Additional work was funded by STFC through grants ST/N000846/1, ST/T002328/1, ST/T506096/1, and ST/W001128/1 (to L.D., M.R.L., and L.J.Ha.); ST/V000675/1 (to K.H.J. and R.H.J.); ST/P005225/1 (to R.T.); ST/S000348/1 (to M.V.G., P.J.W., and M.J.B.); ST/R00143X/1 (to J.B. and L.J.Hi.); ST/S000615/1 (to G.S.C.); ST/V000799/1 (to P.G.); and ST/V000888/1 (to T.E.). A.J.K. and H.C.B. acknowledge funding support from UK Research and Innovation (UKRI) grant MR/T020261/1. P.L.C. acknowledges funding support from UKRI grant MR/S03465X/1. K.H.J. acknowledges funding support from the Royal Society, grant URF\R\201009. L.J.Ha. and M.R.L. acknowledge funding from Natural Environment Research Council (NERC) National Environmental Isotope Facility (NEIF) grant no. 2406.0321. L.D., M.R.L., and L.J.Ha. acknowledge COVID-19 funding support from the University of Glasgow, UK. D.V. was supported in part by NASA cooperative agreement 80NSSC21M0073. P.P. and I.Sy. acknowledge funding from the VEGA agency, project no.1/0421/20. A.J.T.J. acknowledges support from the European Union and the State of Hungary, cofinanced by the European Regional Development Fund in the project of GINOP-2.3.2-15-2016-00009 “ICER.” P.M.S. acknowledges support from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement no. 945298. FRIPON was initiated by funding from ANR (grant N.13-BS05-0009-03), carried out by the Paris Observatory, Muséum National d’Histoire Naturelle, Paris-Saclay University, and Institut Pythéas (LAM-CEREGE). FRIPON data are hosted and processed at Institut Pythéas SIP (Service Informatique Pythéas). The Desert Fireball Network team and Global Fireball Observatory are funded by the Australian Research Council (DP200102073). Direct links between carbonaceous chondrites and their parent bodies in the solar system are rare. The Winchcombe meteorite is the most accurately recorded carbonaceous chondrite fall. Its pre-atmospheric orbit and cosmic-ray exposure age confirm that it arrived on Earth shortly after ejection from a primitive asteroid. Recovered only hours after falling, the composition of the Winchcombe meteorite is largely unmodified by the terrestrial environment. It contains abundant hydrated silicates formed during fluid-rock reactions, and carbon- and nitrogen-bearing organic matter including soluble protein amino acids. The near-pristine hydrogen isotopic composition of the Winchcombe meteorite is comparable to the terrestrial hydrosphere, providing further evidence that volatile-rich carbonaceous asteroids played an important role in the origin of Earth's water. Publisher PDF

Published
2022
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3. The Distribution and Accessibility of Geologic Targets near the Lunar South Pole and Candidate Artemis Landing Sites

Author

Boazman, Sarah J., Shah, Jahnavi, Harish, Gawronska, Aleksandra J., Halim, Samuel H., Satyakumar, Animireddi V., Gilmour, Cosette M., Bickel, Valentin T., Barrett, Natasha, Kring, David A., Boazman, Sarah J., Shah, Jahnavi, Harish, Gawronska, Aleksandra J., Halim, Samuel H., Satyakumar, Animireddi V., Gilmour, Cosette M., Bickel, Valentin T., Barrett, Natasha, and Kring, David A.

Abstract

Transformative lunar science will be driven by the accessibility, recovery, and return to Earth of geological specimens. Isolated boulders, rock exposures, and rocky craters at the lunar south pole all provide opportunities for geologic characterization and sampling of the lunar crust. Here, we present the results of orbital geological mapping of the region surrounding the south pole using Lunar Reconnaissance Orbiter Narrow Angle Camera images (0.5-2 m pixel(-1)). We mapped the distribution of isolated boulders (86,896), rocky craters (3556), and rock exposures (7553) around potential Artemis landing sites 001 and 004 (NASA 2020), which are within or near one of the Artemis III candidate landing regions. We found that boulder abundance decreases with increasing distance from the rim of Shackleton crater. From that correlation, we infer that most of the boulders and rock exposures near Shackleton were deposited as ejecta by the Shackleton impact, and by later the reworking of that material during smaller impact events. We additionally assessed the accessibility of the mapped features, and documented geologic targets located on shallow (

Published
2022

6. Morphology, Development, and Sediment Dynamics of Elongating Linear Dunes on Mars

Author

Davis, Joel M., Banham, Steven G., Grindrod, Peter M., Boazman, Sarah J., Balme, Matthew R., Bristow, Charlie S., Davis, Joel M., Banham, Steven G., Grindrod, Peter M., Boazman, Sarah J., Balme, Matthew R., and Bristow, Charlie S.

Abstract

Linear dunes occur on planetary surfaces, including Earth, Mars, and Titan, yet their dynamics are poorly understood. Recent studies of terrestrial linear dunes suggest they migrate by elongation only in supply limited environments. Here, we investigate elongating linear dunes in the Hellespontus Montes region of Mars which are morphologically similar to terrestrial systems. Multi‐temporal, high‐resolution orbital images show these linear dunes migrate by elongation only and that the fixed sediment source of the dunes probably restricts any lateral migration. Some linear dunes maintain their along length volume and elongate at rates comparable to adjacent barchans, whereas those which decrease in volume show no elongation, suggesting they are near steady state, matching morphometric predictions. Limited sediment supply may restrict Martian linear dunes to several kilometers, significantly shorter than many terrestrial linear dunes. Our results demonstrate the close similarities in dune dynamics across the two planetary surfaces.

7. The Winchcombe meteorite, a unique and pristine witness from the outer solar system

Author

King, Ashley J., Daly, Luke, Rowe, James, Joy, Katherine H., Greenwood, Richard C., Devillepoix, Hadrien A. R., Suttle, Martin D., Chan, Queenie H. S., Russell, Sara S., Bates, Helena C., Bryson, James F. J., Clay, Patricia L., Vida, Denis, Lee, Martin R., O’Brien, Áine, Hallis, Lydia J., Stephen, Natasha R., Tartèse, Romain, Sansom, Eleanor K., Towner, Martin C., Cupak, Martin, Shober, Patrick M., Bland, Phil A., Findlay, Ross, Franchi, Ian A., Verchovsky, Alexander B., Abernethy, Feargus A. J., Grady, Monica M., Floyd, Cameron J., Van Ginneken, Matthias, Bridges, John, Hicks, Leon J., Jones, Rhian H., Mitchell, Jennifer T., Genge, Matthew J., Jenkins, Laura, Martin, Pierre-Etienne, Sephton, Mark A., Watson, Jonathan S., Salge, Tobias, Shirley, Katherine A., Curtis, Rowan J., Warren, Tristram J., Bowles, Neil E., Stuart, Finlay M., Di Nicola, Luigia, Györe, Domokos, Boyce, Adrian J., Shaw, Kathryn M. M., Elliott, Tim, Steele, Robert C. J., Povinec, Pavel, Laubenstein, Matthias, Sanderson, David, Cresswell, Alan, Jull, Anthony J. T., Sýkora, Ivan, Sridhar, Sanjana, Harrison, Richard J., Willcocks, Francesca M., Harrison, Catherine S., Hallatt, Daniel, Wozniakiewicz, Penny J., Burchell, Mark J., Alesbrook, Luke S., Dignam, Aishling, Almeida, Natasha V., Smith, Caroline L., Clark, Brett, Humphreys-Williams, Emma R., Schofield, Paul F., Cornwell, Luke T., Spathis, Vassilia, Morgan, Geraint H., Perkins, Mark J., Kacerek, Richard, Campbell-Burns, Peter, Colas, Francois, Zanda, Brigitte, Vernazza, Pierre, Bouley, Sylvain, Jeanne, Simon, Hankey, Mike, Collins, Gareth S., Young, John S., Shaw, Clive, Horak, Jana, Jones, Dave, James, Nick, Bosley, Steve, Shuttleworth, Alan, Dickinson, Paul, McMullan, Ian, Robson, Derek, Smedley, Andrew R. D., Stanley, Ben, Bassom, Richard, McIntyre, Mark, Suttle, Adam A., Fleet, Richard, Bastiaens, Luc, Ihász, Míra B., McMullan, Sarah, Boazman, Sarah J., Dickeson, Zach I., Grindrod, Peter M., Pickersgill, Annemarie E., Weir, Colin J., Suttle, Fiona M., Farrelly, Sarah, Spencer, Ieun, Naqvi, Sheeraz, Mayne, Ben, Skilton, Dan, Kirk, Dan, Mounsey, Ann, Mounsey, Sally E., Mounsey, Sarah, Godfrey, Pamela, Bond, Lachlan, Bond, Victoria, Wilcock, Cathryn, Wilcock, Hannah, Wilcock, Rob, King, Ashley J., Daly, Luke, Rowe, James, Joy, Katherine H., Greenwood, Richard C., Devillepoix, Hadrien A. R., Suttle, Martin D., Chan, Queenie H. S., Russell, Sara S., Bates, Helena C., Bryson, James F. J., Clay, Patricia L., Vida, Denis, Lee, Martin R., O’Brien, Áine, Hallis, Lydia J., Stephen, Natasha R., Tartèse, Romain, Sansom, Eleanor K., Towner, Martin C., Cupak, Martin, Shober, Patrick M., Bland, Phil A., Findlay, Ross, Franchi, Ian A., Verchovsky, Alexander B., Abernethy, Feargus A. J., Grady, Monica M., Floyd, Cameron J., Van Ginneken, Matthias, Bridges, John, Hicks, Leon J., Jones, Rhian H., Mitchell, Jennifer T., Genge, Matthew J., Jenkins, Laura, Martin, Pierre-Etienne, Sephton, Mark A., Watson, Jonathan S., Salge, Tobias, Shirley, Katherine A., Curtis, Rowan J., Warren, Tristram J., Bowles, Neil E., Stuart, Finlay M., Di Nicola, Luigia, Györe, Domokos, Boyce, Adrian J., Shaw, Kathryn M. M., Elliott, Tim, Steele, Robert C. J., Povinec, Pavel, Laubenstein, Matthias, Sanderson, David, Cresswell, Alan, Jull, Anthony J. T., Sýkora, Ivan, Sridhar, Sanjana, Harrison, Richard J., Willcocks, Francesca M., Harrison, Catherine S., Hallatt, Daniel, Wozniakiewicz, Penny J., Burchell, Mark J., Alesbrook, Luke S., Dignam, Aishling, Almeida, Natasha V., Smith, Caroline L., Clark, Brett, Humphreys-Williams, Emma R., Schofield, Paul F., Cornwell, Luke T., Spathis, Vassilia, Morgan, Geraint H., Perkins, Mark J., Kacerek, Richard, Campbell-Burns, Peter, Colas, Francois, Zanda, Brigitte, Vernazza, Pierre, Bouley, Sylvain, Jeanne, Simon, Hankey, Mike, Collins, Gareth S., Young, John S., Shaw, Clive, Horak, Jana, Jones, Dave, James, Nick, Bosley, Steve, Shuttleworth, Alan, Dickinson, Paul, McMullan, Ian, Robson, Derek, Smedley, Andrew R. D., Stanley, Ben, Bassom, Richard, McIntyre, Mark, Suttle, Adam A., Fleet, Richard, Bastiaens, Luc, Ihász, Míra B., McMullan, Sarah, Boazman, Sarah J., Dickeson, Zach I., Grindrod, Peter M., Pickersgill, Annemarie E., Weir, Colin J., Suttle, Fiona M., Farrelly, Sarah, Spencer, Ieun, Naqvi, Sheeraz, Mayne, Ben, Skilton, Dan, Kirk, Dan, Mounsey, Ann, Mounsey, Sally E., Mounsey, Sarah, Godfrey, Pamela, Bond, Lachlan, Bond, Victoria, Wilcock, Cathryn, Wilcock, Hannah, and Wilcock, Rob

Abstract

Direct links between carbonaceous chondrites and their parent bodies in the solar system are rare. The Winchcombe meteorite is the most accurately recorded carbonaceous chondrite fall. Its pre-atmospheric orbit and cosmic-ray exposure age confirm that it arrived on Earth shortly after ejection from a primitive asteroid. Recovered only hours after falling, the composition of the Winchcombe meteorite is largely unmodified by the terrestrial environment. It contains abundant hydrated silicates formed during fluid-rock reactions, and carbon- and nitrogen-bearing organic matter including soluble protein amino acids. The near-pristine hydrogen isotopic composition of the Winchcombe meteorite is comparable to the terrestrial hydrosphere, providing further evidence that volatile-rich carbonaceous asteroids played an important role in the origin of Earth’s water.

8. Morphology, Development, and Sediment Dynamics of Elongating Linear Dunes on Mars

Author

Davis, Joel M., Banham, Steven G., Grindrod, Peter M., Boazman, Sarah J., Balme, Matthew R., Bristow, Charlie S., Davis, Joel M., Banham, Steven G., Grindrod, Peter M., Boazman, Sarah J., Balme, Matthew R., and Bristow, Charlie S.

Abstract

Linear dunes occur on planetary surfaces, including Earth, Mars, and Titan, yet their dynamics are poorly understood. Recent studies of terrestrial linear dunes suggest they migrate by elongation only in supply limited environments. Here, we investigate elongating linear dunes in the Hellespontus Montes region of Mars which are morphologically similar to terrestrial systems. Multi‐temporal, high‐resolution orbital images show these linear dunes migrate by elongation only and that the fixed sediment source of the dunes probably restricts any lateral migration. Some linear dunes maintain their along length volume and elongate at rates comparable to adjacent barchans, whereas those which decrease in volume show no elongation, suggesting they are near steady state, matching morphometric predictions. Limited sediment supply may restrict Martian linear dunes to several kilometers, significantly shorter than many terrestrial linear dunes. Our results demonstrate the close similarities in dune dynamics across the two planetary surfaces.

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