Results 171 to 180 of about 213,060 (361)

Stratigraphy and Structure of the Park City Mining District, Utah

, 1907
J. M. Boutwell
openalex   +1 more source

A tephrostratigraphic investigation of the continuously varved Holocene Boreal lake Nautajärvi, Finland, provides precise age estimate for Lairg A/Hekla 5 eruption

Journal of Quaternary Science, EarlyView.
ABSTRACT Numerous cryptotephra layers originating from Icelandic volcanoes and further afield have reached Northern Europe during the Holocene. Refining the precise timing and the relative frequency of local and distal eruptions requires well‐resolved continuous sediment archives. Lake Nautajärvi is located in central‐southern Finland (61°48′ N, 24°41′
Alice Carter‐Champion, Katy Flowers, Antti E.K. Ojala, Simon Blockley, Paul Lincoln, Shuang Zhang, Christina Manning, Celia Martin Puertas   +7 more
wiley   +1 more source

The Mesozoic stratigraphy of Alaska [PDF]

, 1926
G. C. Martin
openalex   +1 more source

Hominin and carnivore roles during the formation of the early Middle Pleistocene site of Loreto (Venosa Basin, southern Italy)

Journal of Quaternary Science, EarlyView.
ABSTRACT The site of Loreto (Venosa Basin, Italy) was first discovered in 1929 and subsequently excavated during the latter half of the 20th century. The excavation revealed three archaeo‐palaeontological levels, with the lowermost level (Level A) yielding the largest number of remains.
Antonio Pineda, Beniamino Mecozzi, Alessio Iannucci, Marco Carpentieri, Raffaele Sardella, Suzanne Simone, Marie‐Hélène Moncel   +6 more
wiley   +1 more source

Mesozoic and Palaeozoic Formations of the Yakuno District, Kyoto Prefecture, Japan: A Study on the Stratigraphy and Geologic Structure of the "Maizuru Zone" (Part 4)

, 1957
Keiji Nakazawa, Tsunemasa Shiki, Daikichiro SHIMIZU   +2 more
openalex   +2 more sources

The stratigraphy of the Upper Cretaceous rocks north of the Arkansas River in eastern Colorado [PDF]

, 1937
C. H. Dane, William Gamewell Pierce, John B. Reeside   +2 more
openalex   +1 more source

Thermally Optimised Raman Spectroscopy for Safe Analysis of Wall Paintings and Application to Lorenzetti's Masterpiece

Journal of Raman Spectroscopy, EarlyView.
A portable dual‐wavelength Raman system (exc. 785 and 1064 nm) based on a four‐channel innovative probe for safe characterisation of artworks is presented. This instrument enables non‐contact real‐time monitoring of the temperature rise and laser power modulation to prevent overheating during Raman spectroscopy, through direct emissivity and ...
D. Ciofini, J. Agresti, M. Giamello, A. A. Mencaglia, A. Scala, M. Gavazzi, S. Siano, I. Osticioli   +7 more
wiley   +1 more source

Assessing Thermal Maturity of the Pendência Formation (Potiguar Basin) Using Vitrinite Reflectance and Raman Spectroscopy

Journal of Raman Spectroscopy, EarlyView.
Palynofacies assemblages from the onshore Potiguar Basin display a wide thermal maturity range, with vitrinite reflectance (%Ro) values of 0.46–2.72 measured from nine samples at depths of 1059–4443 m. A strong correlation exists between %Ro and Raman parameters, specifically the G‐band's full width at half maximum.
Gabriel A. Barberes, Dalva A. L. Almeida, Flávia C. Marques, Julliana F. Alves, Paulo H. M. Toledo, Rafael de Oliveira, Lenize F. Maia, Linus Pauling F. Peixoto, Antonio Carlos Sant'Ana, Celly M. S. Izumi, Gustavo F. S. Andrade, Dorval C. Dias Filho, Taissa R. Menezes, Delano M. Ibanez, Luiz Fernando C. de Oliveira   +14 more
wiley   +1 more source

Vertical motion history of the island of O'ahu, Hawaiian Islands, during the last two million years. [PDF]

Sci Rep
Toomey M, Sandstrom M, Huppert K, Taylor F, Cronin TM.   +4 more
europepmc   +1 more source

The Stratigraphy of the Kinderhook Series of Iowa [PDF]

, 1931
L. R. Laudon
openalex   +1 more source