Growth of the South Pyrenean orogenic wedge

Article Abstract:

The sediments that were deposited during the thrusting of the South Pyrenean foreland fold-and-thrust belt in Spain were analyzed to characterize the topographic and structural development of the orogen. Reconstruction of the South Pyrenean fold-and-thrust belt based on topographic slope and thrust-front advance indicated the role of internal slope deformation in maintaining the surface slope angle of the orogen. Furthermore, the flexural rigidity of the lower plate regulated the taper angle of the Pyrenean thrust wedge.

Models, Geology, Structural, Structural geology, Mountains

---

Kinematics around a large-scale oblique ramp, southern Pyrenees, Spain

Article Abstract:

Th Gavarnie thrust sheet of the southern Pyrenees was probably emplaced over an oblique ramp along its western boundary, within the southern Pyrenees. Along the length of the ramp, regional-scale shortening appears constant at about 25% and are accommodated by faulting and the development of regional-scale anticlines in the thrust sheet. As the attitude of the ramp of the Gavarnie thrust fault varies from oblique to frontal, the trend of regional hanging wall fold axes change from zero-180 degrees to about 110 degrees.

Spain, Thrust faults (Geology), Thrust faults

---

Crustal structure and orogenic material budget in the west central Pyrenees

Article Abstract:

A study was conducted on the crustal structure and orogen of the western central Pyrenees at the boundary between the European and Iberian plates. The structure was analyzed using the ECORS-Arzacq reflection profile and refraction data. Results showed that the structure of the west central Pyrenees is a crustal-scale double tectonic wedge and that the total orogenic contraction is around 75-80 km and occurred between the latest Cretaceous and early Miocene.

Plate tectonics

Similar abstracts:

• Abstracts: Upper mantle reflector structure and origin beneath the Scottish Caledonides. Does the Great Glen fault really disrupt Moho and upper mantle structure?
• Abstracts: Muscovite-garnet granites in the Mojave Desert: relation to crustal structure of the cretaceous arc: comment and reply
• Abstracts: Discussion on paleostresses associated with thrust sheet emplacement and related folding in the southern central Pyrenees, Huesca, Spain
• Abstracts: The block structure and quaternary strike-slip block rotation of central Japan. Quaternary deformation in the eastern Pamirs, Tadzhikistan and Kyrgyzstan
• Abstracts: The Indian monsoon and its variability. Recognizing mantle plumes in the geological record

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.