The nature of strong martian crustal field sources is investigated by mapping and modeling of Mars Global Surveyor magnetometer data near Apollinaris Patera, a previously proposed volcanic source, supplemented by large-scale correlative studies. Regional mapping yields evidence for positive correlations of orbital anomalies with both Apollinaris Patera and Lucus Planum, a nearby probable extrus...

To determine whether the ~200 Ma Central Atlantic magmatic province (CAMP) coincides with a normal polarity bias and a purported abrupt change in polar wander at the J1 cusp, we collected samples for paleomagnetic study from 80 sites distributed over a ~2500 mthick section of sedimentary units that are interbedded with and overlie CAMP lavas in the Hartford basin, which together represent the i...

In the broader Caucasus region, multiple extrusive volcanic units are present within Jurassic, Cretaceous, Eocene and Miocene sedimentary successions. Partial reworking of material from various provenance areas into Eocene, Oligocene reservoir is commonly observed in Eastern Black Sea Rioni, Kartli Kura Basins onshore Georgia. Reservoir quality has general been negatively affected by rock fragm...

This paper reconstructs, for the first time, motion dynamics of an eruptive cloud formed during catastrophic eruption Sheveluch volcano in November 1964 (Volcanic Explosivity Index 4+). became possible due to public availability atmospheric reanalysis data from ERA-40 archive European Center Medium-Range Weather Forecasts (ECMWF) and development numerical modeling volcanic ash propagation. The ...

ABSTRACT The integration of biostratigraphical, wireline log, geophysical and available geochronological ages has identified two principal periods volcanism in the Faroe–Shetland Rockall basins. first is pre-breakup, upper Danian to lower Thanetian: basins, isolated volcanic activity from 62 Ma 58.7 areas closely linked SSW–NNE structural fabric continental margin. Volcanic was concentrated at ...

The North American Cordilleran Anatectic Belt (CAB) is a ~3,000 km long region in the hinterland of Cordillera that comprises numerous exposures Late Cretaceous to Eocene intrusive rocks and anatectic associated with crustal melting. As such, it comparable size volume major provinces including Himalayan leucogranite belt. CAB are chiefly peraluminous, muscovite-bearing produced primarily by ana...

Plutonic rocks such as gabbros provide information on magmatic and tectonic processes which occur beneath a mid-ocean rift axis well the formation of oceanic crust. Igneous rocks, reported from Red Sea Rift valley, have been limited to extrusive basalts so far. The only deeper crustal found in area are flanks interpreted late-stage continental magmatism. Here, we present geochemistry first reco...