Results 101 to 110 of about 18,299,024 (255)
Archaeometry, EarlyView.ABSTRACT This study shows an innovative approach to determine the origin of some Calabrian rocks quarried used in ancient times. Twenty‐five quarries, distributed in all the Calabrian provinces (Southern Italy), were studied and sampled. Ten samples were taken from each quarry, for a total of 250 samples.
Domenico Miriello +5 more
wiley +1 more source
Archaeometry, EarlyView.ABSTRACT The inland rock‐cut site of Teniky, located in the Isalo massif of southern Madagascar, represents an exceptional archaeological context recently dated to the 11th–12th centuries ad, corresponding to the early phases of settlement on the island.
Jean Rodier +2 more
wiley +1 more source
Insights into dike nucleation and eruption dynamics from high-resolution seismic imaging of magmatic system at the East Pacific Rise. [PDF]
Sci Adv, 2023 Marjanović M +10 more
europepmc +1 more source
Distinct patterns of volcano deformation for hot and cold magmatic systems
Nature CommunicationsVolcano deformation can be detected over timescales from seconds to decades, offering valuable insights for magma dynamics. However, these signals are shaped by the long-term evolution of magmatic systems, a coupling that remains poorly understood.
Gregor Weber +2 more
doaj +1 more source
Archaeometry, EarlyView.ABSTRACT The following paper investigates ceramic production and signs of specialization in Rome and the wider region during the early first millennium bce, through an archaeometric approach using Instrumental Neutron Activation Analysis (NAA), and complementary techniques.
Mattia D'Acri +4 more
wiley +1 more source
Frontiers in Earth SciencePorphyry-type Cu ± Au ± Mo deposits form in the upper (ca. 2–5 km deep) parts of large, long-lived magmatic-hydrothermal systems in which mineralising fluids are thought to be derived from mid-to shallow-crustal magma chambers.
Lawrence C. Carter +2 more
doaj +1 more source
The November 2002 degassing event at Panarea Island (Italy): five months of geochemical monitoring
Annals of Geophysics, 2005 On 3rd November 2002, at about 3 km off-shore of Panarea Island (Aeolian Islands, Southern Italy), a series of gas vents suddenly and violently opened from the seafloor at the depth of 10-15 m, with an unusually high gas flux and superimposing ...
P. L. Rossi +4 more
doaj +1 more source
Appraisal of Six Natural Mica Reference Materials for In Situ Rb‐Sr Geochronology
Geostandards and Geoanalytical Research, EarlyView.Key Points Evaluated six natural mica reference materials for in situ LA‐ICP‐MS/MS Rb‐Sr geochronology using geochemical, microstructural and isotopic characterisation. Identified robust primary reference materials: Mount Dromedary biotite (99.37 Ma) and Mica‐Fe biotite (307.75 Ma). La Posta biotite and Högsbo muscovite are suitable secondary reference
Hugo K.H. Olierook +38 more
wiley +1 more source
From Slab to Sinter: The Magmatic-Hydrothermal System of Savo Volcano, Solomon Islands
, 2009 The SW Pacific hosts world-class alkaline-related epithermal gold deposits. Savo Island, a recently active volcano in the Solomon Islands, is dominated by alkaline, sodic (≤7.5 wt % Na2O) lavas and pyroclastic deposits and has an active hydrothermal ...
Daniel James Smith (7594106)
core +5 more sources
Geostandards and Geoanalytical Research, EarlyView.Key Points New arsenopyrite reference materials (Niko and Sacra) for in situ multiple sulfur isotope measurement. Niko and Sacra are homogenous, near‐stoichiometric arsenopyrite. Niko serves as a primary matrix‐matched reference material, with lower measurement repeatability; Sacra is recommended as a secondary reference and quality control material ...
Bruna Coldebella +4 more
wiley +1 more source