2014
DOI: 10.1016/j.icarus.2014.06.026
|View full text |Cite
|
Sign up to set email alerts
|

Imprint of the Rheasilvia impact on Vesta – Geologic mapping of quadrangles Gegania and Lucaria

Abstract: a b s t r a c tWe produced two 1:250,000 scale geologic maps of the adjacent quadrangles Av-6 Gegania and Av-7 Lucaria, located in the equatorial region of (4) Vesta (0-144°E, 22°S to 22°N). The mapping is based on clear and color filter images of the Framing Camera (FC) onboard the Dawn spacecraft, which has captured the entire illuminated surface of Vesta with high spatial resolution (up to $20 m/pixel), and on a digital terrain model derived from FC imagery. Besides the geologic mapping itself, a secondary … Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

0
43
2

Year Published

2014
2014
2015
2015

Publication Types

Select...
5

Relationship

4
1

Authors

Journals

citations
Cited by 17 publications
(45 citation statements)
references
References 29 publications
0
43
2
Order By: Relevance
“…However, the distribution of the Rheasilvia-Veneneia ejecta is not homogeneous in either extent or depth, and these deposits did not erase the largest (few tens of km diameter) craters (Schenk et al, 2012;Marchi et al, 2012aMarchi et al, , 2012b. Additionally, FC color data (Reddy et al, 2012a(Reddy et al, , 2012b) and the GRaND global iron map show a large lobe of apparent Rheasilvia ejecta extending across the Gegania and Lucaria quadrangles (Schaefer et al, 2014). There is also evidence that small (<5-km-diameter) lobes of either Rheasilvia or Veneneia ejecta extend well into the northern hemisphere (Williams et al, in press-a).…”
Section: Resultsmentioning
confidence: 96%
See 1 more Smart Citation
“…However, the distribution of the Rheasilvia-Veneneia ejecta is not homogeneous in either extent or depth, and these deposits did not erase the largest (few tens of km diameter) craters (Schenk et al, 2012;Marchi et al, 2012aMarchi et al, , 2012b. Additionally, FC color data (Reddy et al, 2012a(Reddy et al, , 2012b) and the GRaND global iron map show a large lobe of apparent Rheasilvia ejecta extending across the Gegania and Lucaria quadrangles (Schaefer et al, 2014). There is also evidence that small (<5-km-diameter) lobes of either Rheasilvia or Veneneia ejecta extend well into the northern hemisphere (Williams et al, in press-a).…”
Section: Resultsmentioning
confidence: 96%
“…Global geologic mapping (Jaumann et al, 2012;Yingst et al, in press) identified two separate sets of prominent ridges and troughs, one set encircling much of Vesta's equatorial region (Divalia Fossae: see also Schaefer et al, 2014) and the other preserved in the heavily cratered northern terrain (Saturnalia Fossae). Structural analysis of these ridge-and-trough systems indicated that they are likely a tectonic response to the formation of the south polar basins: the Veneneia impact led to the formation of the Saturnalia Fossae, with the Rheasilvia impact leading to the Divalia Fossae (Jaumann et al, 2012;Buczkowski et al, 2012;Bowling et al, 2014).…”
Section: Resultsmentioning
confidence: 99%
“…16). The distribution of this diffuse mantling unit is not symmetrical around the crater, but rather extends $190 km to the west-northwest (Le Corre et al, 2013) and into the Av-7 Lucaria quadrangle (Schäfer et al, 2014). To date, FC color and VIR data analysis has not resulted in a specific mineralogical composition of this diffuse mantling material.…”
Section: Octavia Cratermentioning
confidence: 89%
“…In the equatorial latitudes, Schaefer et al (2014) use a combined map of quadrangles Av-6 (Gegania) and Av-7 (Lucaria) to study the dimensions and nature of the equatorial troughs of the Divalia Fossae Formation. Williams et al (2014) focus on the stratigraphic relations of the large, young fresh craters and associated dark ejecta field found in the Av-8 (Marcia) quadrangle, and Buczkowski et al (2014) focus on the diversity of units on the highland of Vestalia Terra in Av-9 (Numisia) quadrangle.…”
Section: Da Williams Et Al / Icarus XXX (2014) Xxx-xxxmentioning
confidence: 99%