scholarly journals Introduction: Origin and Evolution of the Sierra Nevada and Walker Lane

Geosphere ◽  
2011 ◽  
Vol 7 (6) ◽  
pp. 1269-1272 ◽  
Author(s):  
K. D. Putirka ◽  
C. J. Busby
Keyword(s):  
Sierra Nevada ◽  
Origin And Evolution ◽  
Walker Lane

scholarly journals The geographical interest of historical documents to interpret the scientific evolution of the glacier existing in the Veleta cirque (Sierra Nevada, Spain) during the Little Ice Age

2018 ◽  
Vol 44 (1) ◽  
pp. 267 ◽  
Author(s):  
A. Gómez-Ortiz ◽  
M. Oliva ◽  
F. Salvador-Franch ◽  
M. Salvà-Catarineu ◽  
J. Plana-Castellví
Keyword(s):  
Sierra Nevada ◽  
Environmental Conditions ◽  
Little Ice Age ◽  
Landscape Evolution ◽  
Methodological Approach ◽  
Ice Age ◽  
Historical Documents ◽  
Origin And Evolution ◽  
Microclimate Conditions ◽  
Written Sources

Historical documents have shown their potential to infer the origin and evolution of the glacier existing in the Veleta cirque, in the massif of Sierra Nevada (Spain). This information encompasses written sources spanning from the 17th to the mid-20th centuries, and provides valuable knowledge about the Little Ice Age. These new data complement the already existing geomorphological knowledge about the natural system and landscape evolution in Sierra Nevada, particularly with regards to glacial geomorphic events in the summit areas. From a transdisciplinary methodological approach, the results show that the Veleta glacier was a singular geomorphic event that owed its existence to the particular environmental conditions of the high lands of Sierra Nevada, besides the favourable morpho-topographical setting, altitude, aspect as well as microclimate conditions prevailing in this area.

Kinematics of the southern Walker Lane Belt and motion of the Sierra Nevada block, California

1998 ◽  
Vol 103 (B11) ◽  
pp. 27033-27049 ◽  
Author(s):  
Elizabeth Harding Hearn ◽  
Eugene D. Humphreys
Keyword(s):  
Sierra Nevada ◽  
Walker Lane ◽  
Walker Lane Belt

Rotational properties of the retrograde object (468861) 2013 LU28

2021 ◽  
Author(s):  
Nicolas Morales ◽  
Jose Luis Ortiz ◽  
Pablo Santos-Sanz ◽  
Monica Vara ◽  
Damya Souami
Keyword(s):  
Solar System ◽  
Light Curve ◽  
Sierra Nevada ◽  
Financial Support ◽  
Semimajor Axis ◽  
State Agency ◽  
Rotational Period ◽  
Orbital Eccentricity ◽  
Origin And Evolution ◽  
Calar Alto

<p>Trans-Neptunian Objects (TNOs) are thought to be among the least evolved Solar System objects, which retain information on the origin and evolution of the outer parts of it. They are located at far distances of the Sun, where the influence of our star is less dramatic than in the closer regions. Thus, these icy objects are extremely interesting bodies that hide plenty of information on the physical and dynamical processes that<br />shaped our Solar System.<br />We only know a few retrograde TNOs so far (e.g. 2008 KV42 [1], 2011 KT19 [2], 2004 XR190). One of the few known retrograde objects listed in the MPC database as a scattered disk object is 2013 LU28, which has a high orbital eccentricity (e = 0.95), a large semimajor axis (a= 181 AU) and a very high inclination (i = 125.4º). This exotic object is also classified as an “extended centaur”, because its perihelion at 8.7 AU moves it into the centaur region.<br />The physical properties of 2013 LU28, such as its rotational period and light curve amplitude, are unknown but can be revealed through photometry. With this aim, we observed this object during three observing runs on 2021 January and March using two telescopes, the 1.23 m telescope at Calar Alto Observatory in Almería, Spain and the 1.5 m telescope at Sierra Nevada Observatory in Granada, Spain. From these observations we derived the first determination of the rotational light curve of 2013LU28 from which we derived its rotational period and its peak-to-peak light curve amplitude. The obtained amplitude turned out to be higher than the average amplitude of most TNOs, which points toward an elongated or a binary object. Other magnitudes, such as its absolute magnitude (H) were also derived. We will present and discuss preliminary results on all the above.</p> <p><br />Acknowledgements<br />The authors acknowledge financial support from the State Agency for Research of the Spanish MCIU through the "Center of Excellence Severo Ochoa" award to the Instituto de Astrofísica de Andalucía (SEV-2017-0709). P.S-S. acknowledges financial support by the Spanish grant AYA-    RTI2018-098657-J-I00 "LEO-SBNAF" (MCIU/AEI/FEDER, UE). We are grateful to the CAHA and OSN staffs. This research is partially based on observations collected at the Centro Astronómico Hispano Alemán (CAHA) at Calar Alto, operated jointly by Junta de Andalucı́a and Consejo Superior de Investigaciones Cientı́ficas (IAA-CSIC). This research was also partially based on observation carried out at the Observatorio de Sierra Nevada  (OSN) operated by Instituto de Astrofı́sica de Andalucı́a (CSIC).</p> <p>Bibliography<br />[1] B. Gladman, J. Kavelaars, J.-M. Petit, M. L. N. Ashby, J. Parker, J. et al. ApJ 697:L91–L94, 2009<br />[2] Ying-Tung Chen , Hsing Wen Lin, Matthew J. Holman, Matthew J. Payne et al. ApJ 827:L24 (5pp), 2016</p>

scholarly journals Initiation of Sierra Nevada range front–Walker Lane faulting ca. 12 Ma in the Ancestral Cascades arc

Geosphere ◽  
2013 ◽  
Vol 9 (5) ◽  
pp. 1125-1146 ◽  
Author(s):  
Cathy J. Busby ◽  
Jeanette C. Hagan ◽  
Paul Renne
Keyword(s):  
Sierra Nevada ◽  
Walker Lane

The northern Walker Lane refraction experiment: Pn arrivals and the northern Sierra Nevada root

2004 ◽  
Vol 388 (1-4) ◽  
pp. 253-269 ◽  
Author(s):  
John N. Louie ◽  
Weston Thelen ◽  
Shane B. Smith ◽  
James B. Scott ◽  
Matthew Clark ◽  
...  
Keyword(s):  
Sierra Nevada ◽  
Walker Lane

scholarly journals Progressive derangement of ancient (Mesozoic) east-west Nevadaplano paleochannels into modern (Miocene–Holocene) north-northwest trends in the Walker Lane Belt, central Sierra Nevada

Geosphere ◽  
2016 ◽  
Vol 12 (1) ◽  
pp. 135-175 ◽  
Author(s):  
C.J. Busby ◽  
G.D.M. Andrews ◽  
A.K. Koerner ◽  
S.R. Brown ◽  
B.L. Melosh ◽  
...  
Keyword(s):  
Sierra Nevada ◽  
Walker Lane ◽  
Walker Lane Belt ◽  
East West

scholarly journals Supplemental Material: Plate boundary trench retreat and dextral shear drive intracontinental fault-slip histories: Neogene dextral faulting across the Gabbs Valley and Gillis Ranges, Central Walker Lane, Nevada

2020 ◽  
Author(s):  
J. Lee ◽  
et al.
Keyword(s):  
North America ◽  
Shear Zone ◽  
Reference Frame ◽  
Fault Zone ◽  
Sierra Nevada ◽  
Fault Slip ◽  
Owens Valley ◽  
Walker Lane ◽  
Eastern California Shear Zone ◽  
Gps Velocities

Figure 2. Layer A. Shaded relief map showing major Quaternary faults in central Walker Lane, Mina deflection, northern Eastern California shear zone, and western Basin and Range Province. Heavy black arrow in the northwest corner of the map shows the present-day azimuth of motion of the Sierra Nevada block with respect to the central Great Basin (SN-CBG) (Bennett et al., 2003). Fault abbreviations: APHF—Agai Pah Hills fault; BSF—Benton Spring fault; CF—Coaldale fault; CVF—Clayton Valley fault; EIFZ—Eastern Inyo fault zone; EPF—Emigrant Peak fault; FLVFCDV—Fish Lake Valley–Furnace Creek–Death Valley fault zone; GHF—Gumdrop Hills fault; HLF—Honey Lake fault; HMF—Hunter Mountain fault; IHF—Indian Head fault; MVF—Mohawk Valley fault; OF—Olinghouse fault; OVF—Owens Valley fault; PLF—Pyramid Lake fault; PSF—Petrified Spring fault; PVF—Panamint Valley fault; QVF—Queen Valley fault; SLF—Stateline fault; SNFF—Sierra Nevada frontal fault zone; WMF—White Mountains fault zone; WRF—Wassuk Range fault; WSF—Warm Springs fault. Layer B. Geographic names. Layer C. Tectonic domains. Semi-transparent brown shows the Walker Lane–northern Eastern California shear zone. Layer D. Yellow dashed polygon shows the location of the Gabbs Valley–Gillis Ranges (GVGR) field area (see Fig. 3). Layer E. Yellow stars show the locations of documented middle Miocene fault-slip initiation age. Numbers in the stars are tied to numbers in Table 3. Layer F. Thin blue arrows show GPS velocities relative to stable North America (ITRFNA2005 reference frame) from Lifton et al. (2013), and heavy multi-colored arrows show GPS velocities relative to stable North America (NA12 North America reference frame) from Bormann et al. (2016). GPS velocity scales are in the upper right corner of the map. Maps, labels, and data sets for this figure are organized in a series of layers that may be viewed separately or in combination using the capabilities of the Acrobat (PDF) layering function (click “Layers” icon along vertical bar on left side of window for display of available layers; turn layers on or off by clicking the box that encompasses the layer label located within the gray box in the lower left corner of the map).

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