Results 101 to 110 of about 4,431,213 (212)

Sedimentary environment, lithostratigraphy and dating of sediment sequences from Arctic lakes Revvatnet and Svartvatnet in Hornsund, Svalbard

Polish Polar Research, 2016
The sedimentary environment, sediment characteristics and age-depth models of sediment sequences from Arctic lakes Revvatnet and Svartvatnet, located near the Polish Polar Station in Hornsund, southern Svalbard (77°N), were studied with a view to ...
Ojala Antti E.K., Arppe Laura, Luoto Tomi P., Wacker Lukas, Kurki Eija, Zajączkowski Marek, Pawłowska Joanna, Damrat Mateusz, Oksman Mimmi   +8 more
doaj   +1 more source

Paleomagnetism of Young New Zealand Basalts and Longitudinal Distribution of Paleosecular Variation.

Journal of geomagnetism and geoelectricity, 1995
A paleosecular variation (PSV) study was carried out on monogenic basalt volcanoes of the northern part of North Island, New Zealand. A new method of calculating angular standard deviation (ASD) by fitting a combination of two Fisher distributions to the cumulative histogram of VGP data is presented, which avoids the necessity of applying an arbitrary ...
Hidetoshi Shibuya, John Cassidy, Ian E. M. Smith, Tetsumaru Itaya   +3 more
openaire   +2 more sources

Records of geomagnetic reversals from volcanic islands of French Polynesia : 2. Paleomagnetic study of a flow sequence (1.2-0.6 Ma) from the island of Tahiti and discussion of reversal models [PDF]

, 1990
Une séquence volcanique de 700 m d'épaisseur a été échantillonée dans la vallée du Punaruu (Tahiti). Les résultats de l'étude paléomagnétique montrent que la séquence a enregistré 4 inversions du champ magnétique terrestre. Les données géochronologiques (
Chauvin, A., Duncan, R.A., Roperch, Pierrick   +2 more
core  

Palynology, vegetation and climate of the Waikato lowlands, North Island, New Zealand, since c. 18,000 years ago [PDF]

, 1989
The vegetational and climatic history of the Waikato lowlands during the last c. 18,000 years is inferred from the palynology of sediment cores from Lakes Rotomanuka, Rotokauri, and Okoroire.
Green, John D., Lowe, David J., Newnham, Rewi M.   +2 more
core   +2 more sources

Geomagnetic Excursions Recorded in North Atlantic IODP Expedition 395C Sites U1555 and U1563

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 6, June 2025.
Abstract By studying deep‐sea drilled records from the North Atlantic Ocean, several magnetic instabilities of short duration, such as the Iceland Basin (188 ka), the Björn (1,255 ka) and the Gardar (1,460 ka) excursions, were discovered. These records have contributed to our understanding of Earth's magnetic field and are the foundation of the ...
Anita Di Chiara, Sara Satolli, Sarah A. Friedman, Deepa Dwyer, Gary D. Acton, Tom Dunkley Jones, Boris Theofanis Karatsolis, Paul N. Pearson, Takuma Suzuki, Sevasti Modestou, Suzanne O'Connell, Halima Ibrahim, Claire E. Jasper, Danielle E. LeBlanc, Saran Lee‐Takeda, Thena Thulasi, Deborah E. Eason, Matthias Sinnesael, Katharina Hochmuth, Anne Briais, Ross Parnell‐Turner, Leah J. LeVay, Expedition 395C/395 Science Party   +22 more
wiley   +1 more source

Geomagnetic Field Behavior at High Latitudes from a Paleomagnetic Record from Eltanin Core 27-21 in the Ross Sea Sector, Antarctica [PDF]

, 2007
We present a high-resolution paleomagnetic record from 682 discrete samples from Eltanin 27-21 (69.03°S 179.83°E), a 16-meter long piston core recovered in 1968 at a water depth of 3456 meters by the USNS Eltanin as part of Operation Deep Freeze.
Daxinger, L., Isbel, L., Oey, H., Spurling, A., Vonk, K.K.D., Whitelaw, E., Whitelaw, N.C., Youngson, N.A.   +7 more
core   +1 more source

Was the Lhasa Block at Low Latitudes in the Middle Permian? Insights From New Paleomagnetic and Geochronological Data

Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.
Abstract The absence of reliable paleomagnetic constraints from the Lhasa Block has led to alternative interpretations of its late Paleozoic position and timing of rifting from Gondwana, reflecting uncertainties in early Neo‐Tethyan paleogeography. This study presents paleomagnetic and geochronological data from the middle Permian Luobadui Formation ...
Longyun Xing, Xin Cheng, Mathew Domeier, Bitian Wei, Zhongshan Shen, Nan Jiang, Jiahui Zhang, Qinglong Chen, Shuqi Lan, Dongmeng Zhang, Yanan Zhou, Chenglong Deng, Hanning Wu   +12 more
wiley   +1 more source

Detecting and correcting for paleomagnetic inclination shallowing of sedimentary rocks: A review

Frontiers in Earth Science, 2016
Magnetic anisotropy and the elongation/inclination (E-I) approaches have been increasingly employed as two important means for detecting and correcting the paleomagnetic inclination shallowing in sedimentary rocks that was first recognized sixty years ...
Yong-Xiang eLi, Kenneth P. Kodama
doaj   +1 more source

A continuous Late Holocene paleosecular variation record from Carmen Lake (Tierra del Fuego, Argentina)

Physics of the Earth and Planetary Interiors, 2018
Paleomagnetic secular variations (PSV) give us information on the mechanisms of the geodynamo and can also be used for stratigraphic correlation on a regional scale.
C. Gogorza, M. A. Irurzun, M. Orgeira, P. Palermo, M. Llera   +4 more
semanticscholar   +1 more source

Oligo-Miocene magnetostratigraphy and rock magnetism of the Xishuigou section, Subei (Gansu Province, western China) and implications for shallow inclinations in central Asia. [PDF]

, 2001
Magnetostratigraphy of 222 remanent directions together with late Oligocene to early Miocene mammal and charophyte paleontology suggest that 2179 m of the Xishuigou section (Subei, Gansu Province, China) were deposited from ~26 to ~19 Ma.
Agrinier, Arason, Avouac, Bazhenov, Bazhenov, Berggren, Besse, Bohlin, Bohlin, Bohlin, Bohlin, Carlut, Chauvin, Chen, Chen, Chen, Cogné, Cogné, Collinson, Doell, Fisk, Frost, Gilder, Griffiths, Gubbins, Halim, Hamilton, Hendrix, Henry, Housen, Hrouda, Hrouda, Hrouda, Jackson, Jackson, Jelinek, Johnson, Johnson, Kanamatsu, Kelly, Kent, King, King, King, King, Kirschvink, Kissel, Kodama, Kodama, Krumbein, Li, Lu, McElhinny, McFadden, Meyer, Morris, Métivier, Otofuji, Owens, Parés, Patriat, Pozzi, Qiu, Quidelleur, Rees, Rees, Rees, Rees, Rumelhart, Sevket Sen, Sobel, Sobel, Stuart Gilder, Tan, Tapponnier, Tapponnier, Thomas, Thomas, Thompson, Van der Woerd, Verosub, Wang, Wang, Westphal, Yan Chen, Zijderveld   +85 more
core   +5 more sources