Oswald Malcles
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Late Pleistocene–Holocene denudation, uplift, and morphology evolution of the Armorican Massif (western Europe) Open
Elevated Plio-Pleistocene coastal and marine markers in stable continental regions are commonly explained by a combination of eustatic sea-level variations and large-scale geological processes (e.g., crustal or mantle dynamics). In this st…
View article: Inframillimetric slip rate and ∼8kyr long recurrence intervals for Mw ≥ 7.5 earthquakes along the southern section of the Har-Us-Nuur fault (Mongolian Altay)
Inframillimetric slip rate and ∼8kyr long recurrence intervals for Mw ≥ 7.5 earthquakes along the southern section of the Har-Us-Nuur fault (Mongolian Altay) Open
The Har-Us-Nuur fault corresponds to one of the longest (>500 km) strike-slip fault in Mongolian Altai. Although the fault clearly affects Quaternary deposits, no major instrumental or historical earthquake is associated to it and only a f…
Cosmogenic nuclide-derived downcutting rates of canyons within large limestone plateaus of southern Massif Central (France) reveal a different regional speleogenesis of karst networks Open
We present 35 new burial ages (27 sites) based on 26Al / 10Be ratios of terrestrial cosmogenic radionuclides measured in clasts and sediments deep within 12 caves in the southern Massif Central, France. Our results, together with previousl…
View article: Using cosmogenic 3He and radiocarbon dating for incision and uplift rates estimations at the margin of the Massif Central along the northeast termination of the Cevennes Fault System
Using cosmogenic 3He and radiocarbon dating for incision and uplift rates estimations at the margin of the Massif Central along the northeast termination of the Cevennes Fault System Open
Stable continental zones such as metropolitan France are characterized by slow deformation. As a result, fault slip rates are low and return periods long. However, these zones are not devoid of seismicity and can produce major earthquakes …
Reply on CC1 Open
Abstract. Elevated Plio-Pleistocene coastal and marine markers in stable continental regions are commonly explained by a combination of eustatic sea-level variations and regional geodynamics (e.g., mantle dynamics, active faults). In this …
Late Pleistocene – Holocene denudation, uplift, and morphology evolution of the Armorican Massif (western Europe) Open
Elevated Plio-Pleistocene coastal and marine markers in stable continental regions are commonly explained by a combination of eustatic sea-level variations and regional geodynamics (e.g., mantle dynamics, active faults). In this study, we …
Reply on RC1 Open
Abstract. We present 27 new burial ages based on 26Al / 10Be ratios of terrestrial cosmogenic radionuclides measured in clasts and sediments deep within 12 caves in the southern Massif Central, France. Our results together with previously …
Reply on RC2 Open
Abstract. We present 27 new burial ages based on 26Al / 10Be ratios of terrestrial cosmogenic radionuclides measured in clasts and sediments deep within 12 caves in the southern Massif Central, France. Our results together with previously …
Cosmogenic nuclide-derived downcutting rates of canyons within large limestone plateaus of southern Massif Central (France) reveal a different regional speleogenesis of karst networks Open
We present 27 new burial ages based on 26Al / 10Be ratios of terrestrial cosmogenic radionuclides measured in clasts and sediments deep within 12 caves in the southern Massif Central, France. Our results together with previously published …
Impact of long-term erosion on crustal stresses and seismicity in stable continental regions Open
The causes of seismicity in stable continental regions (SCRs) remain an open question, in particular with respect to (1) the transient or steady-state nature of the forcing mechanisms and (2) the bias toward shallow seismicity. In this stu…
First quantitative evidences of ghost-rock karstification controlling regional karst geometry Open
Although more and more processes are discussed and discovered on the genesis and evolution of cave systems, the tiered karsts are often explained by a control of the base level evolution. In this classical model, the horizontal galleries a…
Challenging Intraplate Orogens: from geomorphology to lithospheric dynamic. The French Massif Central Case study Open
In the 60s, the formulation of the plate tectonic theory changed our understanding of the Earth dynamics. Aiming at explaining the earth first order kinematics, this primary theory of plate tectonic assumed rigid plates, a necessity to eff…
Determining the Plio-Quaternary uplift of the southern French Massif Central; a new insight for intraplate orogen dynamics Open
The evolution of intraplate orogens is still poorly understood. Yet, it is of major importance for understanding the Earth and plate dynamics, as well as the link between surface and deep geodynamic processes. The French Massif Central is …
Answer to RC2 Open
This paper presents original data on an interesting geomorphological subject where quantification is difficult and rare.The overall conclusion that South Massif Central has seen an incision and related uplift of about 80 m/Myr in the last …
Answer to RC1 Open
This article from Malcles et al., presents a nice example of how cosmogenic dating of burial sediments can be used for landscape reconstruction.The multi-methodological approach is particularly interesting, coupling cosmogenic and magnetos…
Determining the Plio-Quaternary uplift of the southern French massif-Central; a new insights for intraplate orogen dynamics Open
The evolution of intra-plate orogens is still poorly understood. Yet, this is of major importance for understanding the Earth and plate dynamic, as well as the link between surface and deep geodynamic processes. The French Massif Central i…