Results 51 to 60 of about 100,500 (254)

The GSSP Method of Chronostratigraphy: A Critical Review

Frontiers in Earth Science, 2018
The use of boundary stratotypes to define chronostratigraphic units began in the 1960s, and, in the 1980s, these were called Global Stratotype Sections and Points (GSSPs). Approximately two-thirds of the GSSPs of the bases of the Phanerozoic stage (71 of
Spencer G. Lucas
doaj   +1 more source

Chronological Correlation of the Bronze Age Cultural Traditions in the Southern Trans-Urals (Srubnaya-Alakul and Cherkaskul antiquities)

Археология евразийских степей, 2023
The article considers the chronology issues of two cultural traditions in the Southern Trans-Ural Bronze Age that poorly provided with radiocarbon dates.
Andrey V. Epimakhov, Sofya E. Panteleeva, Ludmila N. Koryakova, Rüdiger Krause, Eliza Stolarczyk   +4 more
doaj   +1 more source

Stratigraphy and development of the Late Miocene-Early Pleistocene Hawke’s Bay forearc basin [PDF]

, 2004
A Late Miocene-Early Pleistocene mixed carbonate-siliciclastic sedimentary succession about 2 500 m thick in the Hawke’s Bay forearc basin is the focus of a basin analysis. The area under investigation covers 3 500 km2 of western and central Hawke’s Bay.
Bland, Kyle J., Kamp, Peter J.J., Nelson, Campbell S.   +2 more
core   +1 more source

Melt regimes, internal stratigraphy, and flow dynamics of three glaciers in the Alaska Range [PDF]

, 2012
We used ground-penetrating radar (GPR), GPS and glaciochemistry to evaluate melt regimes and ice depths, important variables for mass-balance and ice-volume studies, of Upper Yentna Glacier, Upper Kahiltna Glacier and the Mount Hunter ice divide, Alaska.
Arcone, Steven, Campbell, Seth, Introne, Douglas, Kreutz, K, Osterberg, Erich, Volkening, Kevin, Wake, Cameron P, Winski, Dominic   +7 more
core   +2 more sources

The 2012 Studies of the Kashan I Fortified Site

Поволжская археология, 2013
The results of a new series of investigations on the Kashan I fortified site (Laishevo district, Republic of Tatarstan), one of the understudied cities of Volga Bulgaria, are made public in the article.
Shigapov Marat B.
doaj   +1 more source

Defining multiple inhabitations of a cave environment using interdisciplinary archaeometry: the ‘Christmas Cave’ of the Wadi en-Nar/Nahal Qidron, West of the Dead Sea

Heritage Science, 2022
The present study reports a series of interdisciplinary archaeometrical analyses of objects found in the Christmas Cave, which was discovered by John Allegro and his team in 1960 on the West Bank of the Dead Sea and assumed to be inhabited only in the ...
Kaare Lund Rasmussen, Johannes van der Plicht, Ilaria Degano, Francesca Modugno, Maria Perla Colombini, Guillermo de la Fuente, Thomas Delbey, Amos Frumkin, Uri Davidovich, Roi Porat, Orit Shamir, Naama Sukenik, Greg Doudna, Joan Taylor, Mladen Popović   +14 more
doaj   +1 more source

Chemostratigraphy of Neoproterozoic carbonates: implications for 'blind dating' [PDF]

, 2001
The delta C-13(carb) and Sr-87/Sr-86 secular variations in Neoproteozoic seawater have been used for the purpose of 'isotope stratigraphy' but there are a number of problems that can preclude its routine use.
Aharon P., Anthony E. Fallick, Anton B. Kuznetsov, Bowring S.A., Brand U., Brasier M.D., Brasier M.D., Brasier M.D., Burns S.J., Calver C.R., Corsetti F.A., Fairchild I.J., Fairchild I.J., Gao G., Gorokhov I.M., Gorokhov I.M., Gorokhov I.M., Grotzinger J.P., Grotzinger J.P., Hoffman P.F., Igor M. Gorokhov, Kaufman A.J., Kennedy M.J., Kirschvink J.L., Knoll A.H., Knoll A.H., Knoll A.H., Kupecz J.A., Kuznetsov A.B., Kuznetsov A.B., Lambert I.B., Magaritz M., McArthur J.M., McArthur J.M., McCulloch M.T., Melezhik V.A., Morton J.P., Ovchinnikova G.V., Pelechaty S.M., Podkovyrov V.N., Pokrovsky B.G., Pokrovsky B.G., Pokrovsky B.G., Saylor B.Z., Semikhatov M.A., Singh U., Smith L.H., Tronnes R.G., Tucker M.E., Tucker M.E., Veizer J., Veizer J., Victor A. Melezhik, Wada S.-I., Walter M.R., Wang Da-Rui   +55 more
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Multidisciplinary dataset for geological and environmental studies in the lake of Cavazzo (Southern Alps)

Data in Brief, 2021
The present dataset was collected to evaluate the environmental stressors on a lacustrine basin in the Eastern Alps of glacial origin that has been affected in recent years by natural and anthropogenic events such as the construction of a hydroelectric ...
Alina Polonia, Sonia Albertazzi, Luca Giorgio Bellucci, Carla Bonetti, Jarbas Bonetti, Andrea Gallerani, Giulia Giorgetti, Silvia Giuliani, Matthias López Correa, Christoph Mayr, Stefano Miserocchi, Laura Peruzza, Fabio Savelli, Giuseppe Stanghellini, Luca Gasperini   +14 more
doaj   +1 more source

Recent centrifuge modelling of offshore geotechnical problems at IWHR [PDF]

E3S Web of Conferences, 2019
Centrifuge modelling has been proven to be an efficient and reliable approach for examining offshore geotechnical problems. This study reports the two series of centrifuge tests to understand the behaviour of spudcan penetration in a “soft-stiff-soft ...
Liang Jianhui, Song Xianhui
doaj   +1 more source

New evidence for the age of the Athol Formation (Middle Jurassic : Bajocian) in the Tusk-1 and Tusk-2 wells, offshore Carnarvon Basin, Western Australia [PDF]

, 2010
The co-occurrence of ammonites with palynomorphs in the Athol Formation of the Tusk-1 and Tusk-2 wells drilled in the offshore Carnarvon Basin, Western Australia confirms the Early Bajocian (Middle Jurassic) age of the Dissiliodinium caddaense ...
Darbyshire, D.P. Fiona, Riding, James B., Westermann, Gerd E.G.   +2 more
core   +1 more source