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26 results on '"Schulzeck, F."'

5. The unique geomorphology and structural geology of the Haulani crater of dwarf planet Ceres as revealed by geological mapping of equatorial quadrangle Ac-6 Haulani

Author

Krohn, K., Jaumann, R., Otto, K.A., Schulzeck, F., Neesemann, A., Nass, A., Stephan, K., Tosi, F., Wagner, R.J., Zambon, F., von der Gathen, I., Williams, D.A., Buczkowski, D.L., De Sanctis, M.C., Kersten, E., Matz, K.-D., Mest, S.C., Pieters, C.M., Preusker, F., Roatsch, T., Scully, J.E.C., Russell, C.T., and Raymond, C.A.

Published
2018
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8. Boulders on Ceres

Author

Schroder, S. E, Carsenty, U, Neesemann, A, Jaumann, R, Marchi, S, Mcfadden, L. A, Otto, K, Schenk, P, Schulzeck, F, Raymond, C. A, and Russell, C. T

Subjects
Lunar And Planetary Science And Exploration
Abstract

Introduction: In December 2015 the Dawn spacecraft moved into the Low Altitude Mapping Orbit (LAMO) around Ceres, encircling the dwarf planet at a distance of 400 km to the surface below. At this altitude, images of the on-board framing camera have a resolution of 36 meters per pixel, high enough to distinguish large boulders on the surface. Indeed, LAMO images show a multitude of boulders around what seem to be fresh craters. The average life-time of boulders on Dawn's previous target, Vesta, was estimated to be similar to that of Lunar boulders, as may be expected from the basaltic surface composition. The bulk composition of Ceres may be carbonaceous chondrite-like with significant contributions of clays, salt, and water ice. As such, the abundance and distribution of boulders on Ceres may be different from that on Vesta. We mapped, counted, and measured the diameter of boulders over the entire surface of Ceres. Our analysis of the data in combination with crater age estimates may provide clues to the physical nature and composition of the surface.

Published
2017

10. Dantu's mineralogical properties - A view into the composition of Ceres' crust

Author

Stephan, K., primary, Jaumann, R., additional, Wagner, R., additional, De Sanctis, M. C., additional, Palomba, E., additional, Longobardo, A., additional, Williams, D. A., additional, Krohn, K., additional, Tosi, F., additional, McFadden, L. A., additional, Carrozzo, F. G., additional, Zambon, F., additional, Ammannito, E., additional, Combe, J.-P., additional, Matz, K.-D., additional, Schulzeck, F., additional, von der Gathen, I., additional, Roatsch, T., additional, Raymond, C. A., additional, and Russell, C. T., additional

Published
2018
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12. Geologic Mapping of the Ac-H-11 Sintana Quadrangle of Ceres from NASA’s Dawn Mission

Author

Schulzeck, F., Krohn, Katrin, Jaumann, R., Williams, D.A., Buczkowski, D.L., Mest, S., Scully, J.E.C., v. d. Gathen, I., Kersten, Elke, Matz, Klaus-Dieter, Naß, Andrea, Otto, Katharina, Pieters, C., Preusker, Frank, Roatsch, Thomas, Sanctis, Maria Cristina De, Schenk, P., Schröder, Stefan, Stephan, K., Wagner, Roland, Raymond, C. A., and Russell, C.T.

Subjects
Ceres, Geologic Mapping, Dawn
Published
2016

13. Geologic Mapping of the Ac-H-6 Quadrangle of Ceres from NASA's Dawn Mission: Changes in Composition

Author

Krohn, K., Jaumann, R., TOSI, Federico, Nass, A., Otto, K. A., Schulzeck, F., Stephan, K., Wagner, R. J., Williams, D. A., Buczkowski, D. L., Mest, S. C., Scully, J. E. C., von der Gathen, I., Kersten, E., Matz, K. -D., Pieters, C. M., Preusker, F., Roatsch, T., DE SANCTIS, MARIA CRISTINA, ZAMBON, Francesca, Russell, C. T., Raymond, C. A., ITA, USA, and DEU

Abstract

In this abstract we discuss the geologic evolution of the Ac-H-6 Haulani Quadrangle.

Published
2016

14. Preliminary Geological Map of the Ac-H-11 Sintana Quadrangle of Ceres: An Integrated Mapping Study Using Dawn Spacecraft Data

Author

Schulzeck, F., Jaumann, R., Krohn, Katrin, Williams, D.A., Buczkowski, D.L., Mest, S., Scully, J.E.C., von der Gathen, Isabel, Kersten, Elke, Matz, K.-D., Nass, A., Otto, K., Pieters, C.M., Preusker, Frank, Roatsch, T., De Sanctis, M.C., Schröder, S.E., Stephan, K., Wagner, R.J., Raymond, C.A., and Russell, C.T.

Subjects
Mapping, Sintana, Ceres, Dawn
Published
2015

15. Comparative tectonic features on Ceres and other planetary bodies

Author

Jaumann, R., Krohn, Katrin, Otto, K., Schulzeck, F., Williams, D.A., Buczkowski, D.L., De Sanctis, M.C., Elgner, S., Kersten, E., Matz, K.D., Nass, A., Preusker, Frank, Roatsch, T., Schenk, P., Schröder, S.E., Stephan, K., Wagner, R., Raymond, C.A., and Russell, C.T.

Subjects
Planetengeologie, Tectonics on Ceres, Planetengeodäsie
Published
2015

17. Dawn Framing Camera Clear Filter Imaging on Ceres Approach

Author

Nathues, A., Sykes, Mark V., Büttner, I., Buczkowski, D.L., Carsenty, U., Castillo-Rogez, J., Christensen, U., Gutierrez-Marques, Pablo, Hall, I., Hoffmann, M., Jaumann, R., Joy, S.P., Keller, H. U., Kersten, Elke, Krohn, Katrin, Li, Y. J., Marchi, S, Matz, Klaus-Dieter, McCord, Thomas B., McFadden, L.A., Mengel, K., Mertens, V., Mottola, S., Neumann, W., Mastrodemos, N., O'Brien, D.P., Otto, K., Pieters, C., Pieth, Susanne, Polanskey, C.A., Preusker, Frank, Rayman, M.D., Raymond, C.A., Reddy, V., Ripken, J, Roatsch, Thomas, Russell, C.T., Schäfer, M., Schäfer, T., Schenk, P., Schmedemann, N., Scholten, F., Schroeder, S, Schulzeck, F., Sierks, H., Smith, D.E., Stephan, K., Thangjam, G., Weiland, M., Williams, D.A., and Zuber, M.T.

Subjects
Asteroiden und Kometen, Planetengeologie, Framing Camera, Planetenphysik, Institutsplanung / Zentrale Aufgaben PF, Planetengeodäsie, Leitungsbereich PF, Ceres, DAWN
Published
2015

18. The Geology of Ceres: an Overview

Author

Jaumann, Ralf, Russell, C.T., Raymond, C.A., McSween, H.Y., Williams, D.A., Buczkowski, D.L., Hiesinger, H., Desanctis, M.C., Nathues, A., Preusker, Frank, Roatsch, Thomas, Ammannito, E., Otto, Katharina A., Krohn, Katrin, Stephan, K., Matz, Klaus-Dieter, Elgner, Stephan, Kersten, Elke, Wagner, R., Schröder, S.E., Schulzeck, F., von der Gathen, Isabel, Schmedemann, N., Kneissl, T., Nessemann, A., Scully, J.E.C., Mest, S., Marchi, S, Schenk, P., and McCord, Thomas B.

Subjects
Planetengeologie, geology, Planetengeodäsie, Ceres, DAWN
Published
2015

20. Polygonal Craters on Dwarf-Planet Ceres

Author

Otto, K., Jaumann, R., Krohn, Katrin, Buczkowski, D.L., von der Gathen, I., Kersten, Elke, Mest, S., Preusker, Frank, Roatsch, Thomas, Schenk, P., Schröder, S.E., Schulzeck, F., Scully, J., Stephan, K., Wagner, R., Williams, D. A., Raymond, C. A., and Russell, C.T.

Subjects
Planetengeologie, Planetengeodäsie, Ceres, DAWN, polygonal craters
Published
2015

21. Cryogenic flow features on Ceres: Implications for crater‐related cryovolcanism

Author

Krohn, K., primary, Jaumann, R., additional, Stephan, K., additional, Otto, K. A., additional, Schmedemann, N., additional, Wagner, R. J., additional, Matz, K.‐D., additional, Tosi, F., additional, Zambon, F., additional, von der Gathen, I., additional, Schulzeck, F., additional, Schröder, S. E., additional, Buczkowski, D. L., additional, Hiesinger, H., additional, McSween, H. Y., additional, Pieters, C. M., additional, Preusker, F., additional, Roatsch, T., additional, Raymond, C. A., additional, Russell, C. T., additional, and Williams, D. A., additional

Published
2016
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22. Thermal Condition of the 27 October 2012 Mw 7.8 Haida Gwaii Subduction Earthquake at the Obliquely Convergent Queen Charlotte Margin

Author

Wang, K., He, J., Schulzeck, F., Hyndman, R. D., Riedel, Michael, Wang, K., He, J., Schulzeck, F., Hyndman, R. D., and Riedel, Michael

Abstract

The 2012 Mw 7.8 Haida Gwaii earthquake confirmed very oblique subduction and slip partitioning at the southern Queen Charlotte margin. In this study, we re‐examine the thermal regime near the earthquake using new model constraints and with the recognition that hydrothermal circulation in the subducting oceanic crust can significantly affect the margin thermal regime. The observed heat flow values are extremely high just seaward of the trench but decrease rapidly landward. We explain this pattern as the consequence of very vigorous hydrothermal circulation in the subducting oceanic crust. Using a finite‐element model, we simulate the thermal effect of the circulation using a high‐conductivity proxy that represents a very high Nusselt number in an aquifer along the top of the oceanic plate. Our thermal model indicates that the temperature at the intersection of the megathrust and the strike‐slip Queen Charlotte fault (QCF) just seaward of the coast is about 350° C, approximately the limit of seismogenic behavior, and cooler than previous models that did not include hydrothermal circulation. The change of plate motion kinematics across the QCF approximately coincides with a down‐dip transition of the thermally controlled seismogenic behavior of the megathrust. Seaward of the QCF, the shallow megathrust accommodates mainly the margin‐normal component of relative plate motion, with the strike‐slip component accommodated by the QCF. This portion of the megathrust exhibits stick slip and produced the 2012 Haida Gwaii earthquake. Landward of the QCF, the megathrust fully accommodates the very oblique motion of the oceanic plate beneath the continental crust and exhibits creep.

Published
2015
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24. DAWN MISSION FINAL HIGH RESOLUTION GLOBAL GEOLOGIC MAP OF CERES.

Author

Williams, D. A., Buczkowski, D. L., Crown, D. A., Frigeri, A., Hughson, K., Kneissl, T., Krohn, K., Mest, S. C., Pasckert, J.H., Platz, T., Ruesch, O., Schulzeck, F., Scully, J. E. C., Sizemore, H. G., Nass, A., Jaumann, R., Raymond, C. A., and Russell, C. T.

Subjects
GEOLOGICAL mapping, IMPACT craters, DWARF planets, PLANETARY science, SPACE exploration, LUNAR craters
Published
2019

25. TOPOGRAPHY AND GEOMORPHOLOGY OF THE INTERIOR OF OCCATOR CRATER ON CERES.

Author

Jaumann, R., Preusker, F., Krohn, K., von der Gathen, I., Stephan, K., Matz, K.-D., Elgner, S., Otto, K., Schmedemann, N., Neesemann, A., Roatsch, T., Kersten, E., Schroeder, S., Schulzeck, F., Tosi, F., De Sanctis, M. C., Buczkowski, D., Scully, J. E. C., Hiesinger, H., and Raymond, C.

Subjects
GEOMORPHOLOGY, IMPACT craters, CERES (Dwarf planet)
Published
2017

26. THE DISTRIBUTION OF IMPACT EJECTA ON CERES.

Author

Schmedemann, N., Neesemann, A., Schulzeck, F., Krohn, K., von der Gathen, I., Otto, K. A., Jaumann, R., Michael, G., Raymond, C. A., and Russell, C. T.

Subjects
CERES (Dwarf planet), DWARF planets, SMALL solar system bodies, ASTRONOMY, PLANETARY science
Published
2017

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