Results 61 to 70 of about 208,933 (390)
Stratigraphy of the Hawai'i Scientific Drilling Project core (HSDP2): Anatomy of a Hawaiian shield volcano [PDF]
The Hawai'i Scientific Drilling Project (HSDP2) successfully drilled ∼3.1 km into the island of Hawai'i. Drilling started on Mauna Loa volcano, drilling 247 m of subaerial lavas before encountering 832 m of subaerial Mauna Kea lavas, followed by 2019 m ...
Baker, Michael+3 more
core +1 more source
ABSTRACT This paper presents a novel methodology and workflow successful in identifying and mapping undercanopy archaeology in woodland Mediterranean areas. The study area is characterized by dense vegetation typical of the Mediterranean area, located in southern Tuscany (Italy), within the territory of the ancient city of Rusellae next to the ...
G. P. Cirigliano+6 more
wiley +1 more source
The Salittu Formation in southwestern Finland, part I: Structure, age and stratigraphy [PDF]
Because of the relatively low metamorphic grade, low strain and well-preserved early structures in volcanic and volcaniclastic rocks, the Orijärvi triangle (in the center of the larger Orijärvi area) is one of the few locations in the Svecofennian orogen
M. Nironen, I. Mänttäri, M. Väisänen
doaj +1 more source
Stratigraphic and sedimentologic framework for tephras in the Wilson Creek Formation, Mono Basin, California, USA [PDF]
Numerous tephra layers occur within the late Pleistocene Wilson Creek Formation, where they are interbedded with lacustrine deposits of Lake Russell, the ancestor of present-day Mono Lake. Most of the tephra layers are rhyolitic in composition, and were produced from the Mono Craters.
arxiv +1 more source
ABSTRACT This study presents a comprehensive approach to verifying a presumed western gate at Pohansko by integrating nondestructive geophysical methods (ERT, magnetometry and core prospection) with traditional archaeological excavation. The identification and characterization of gates by nondestructive methods within early mediaeval fortified sites ...
Petr Dresler+6 more
wiley +1 more source
Geologists have long realized the important control of mechanical stratigraphy on fault nucleation, fault linkage and fault compartmentalization. However, uncertainties still exist concerning the mechanical heterogeneity of the stratigraphy because of ...
Yicheng Mou, Wei Guo, Yangwen Pei
doaj
Status of the geological research in Svalbard and the Barents Sea [PDF]
For more than one hundred years the archipelago of Svalbard has been visited by numerous geologists particularly interested in the stratigraphy and palaeontology of the nearly continuous series of late Palaeozoic, Mesozoic and Cenozoic sedimentary ...
T. Gjelsvik+4 more
doaj +1 more source
Bayesian classification for dating archaeological sites via projectile points [PDF]
Dating is a key element for archaeologists. We propose a Bayesian approach to provide chronology to sites that have neither radiocarbon dating nor clear stratigraphy and whose only information comes from lithic arrowheads. This classifier is based on the Dirichlet-multinomial inferential process and posterior predictive distributions.
arxiv
Dating glacier ice of the last millennium by quantum technology [PDF]
Radiometric dating with 39Ar covers a unique timespan and offers key advances in interpreting environmental archives of the last millennium. Although this tracer has been acknowledged for decades, studies so far have been limited by the low abundance and radioactivity, thus requiring huge sample sizes.
arxiv +1 more source
Towards a sequence stratigraphic solution set for autogenic processes and allogenic controls: Upper Cretaceous strata, Book Cliffs, Utah, USA [PDF]
Upper Cretaceous strata exposed in the Book Cliffs of east–central Utah are widely used as an archetype for the sequence stratigraphy of marginal-marine and shallow-marine deposits.
Hampson, GJ
core +1 more source