Results 21 to 30 of about 45,604 (311)

Holocene and Upper Pleistocene stratigraphy of Xochimilco lake, central Mexico

Revista Mexicana de Ciencias Geológicas, 2022
The lacustrine system developed in the basin of Mexico has been of great interest in studies of various geological and social disciplines. Its sediments preserve the history of the environmental changes that occurred during the late Quaternary.
Beatriz Ortega-Guerrero, Sandra García, Guadalupe Cruz, Claudio Salinas, Margarita Caballero, Ismerai Reyes, Lizeth Caballero   +6 more
doaj   +1 more source

40Ar/39Ar dating of Quaternary lavas in northwest Iran: constraints on the landscape evolution and incision rates of the Turkish-Iranian plateau [PDF]

, 2011
We report five new ⁴⁰Ar/³⁹Ar ages for basaltic lavas in the Maku region of northwest Iran, between ca. 1.87 and 0.40 Ma, which help constrain the tectonic and landscape evolution of this part of the Turkish ...
Allen, M.B., Kheirkhah, M., Emami, M.H., Saville, C., Barfod, D., Mark, D.F.   +5 more
core   +1 more source

Glacial geomorphology of the Chirripó National Park, Costa Rica

Journal of Maps, 2019
Several regions of tropical America show imprints of past glacial activity. These relict landforms can support the understanding of past climate conditions, such as during the Last Glacial Maximum (LGM), and the implications that these paleoclimatic ...
Adolfo Quesada-Román, Juan Antonio Ballesteros-Cánovas, Markus Stoffel, José Juan Zamorano-Orozco   +3 more
doaj   +1 more source

Geodynamic Controls on Basaltic Volcanism in the Arabian Peninsula: Evolution of Harrat Uwayrid, Saudi Arabia

Geochemistry, Geophysics, Geosystems, 2023
Basaltic lavas from Harrat Uwayrid, Saudi Arabia, record the evolving magmatic and tectonic context of the Arabian Peninsula from at least the mid‐Miocene to the present day.
Shelby Bowden, Tanya Furman, Mansour Alhumimidi, Willis Hames, Ali Assiri, Mazen Alyousif, Ramzi Almutairi, Hamad Alqahtani, Abdurahman Bin Rogaib, Abdulaziz Bin Rushood, Khaled AlYousef   +10 more
doaj   +1 more source

Late quaternary activity characteristics of the Quzika-Jitang segment along the Lancangjiang fault zone, eastern Tibetan Plateau

Frontiers in Earth Science
The Lancangjiang fault zone (LCJFZ) is a major crustal-scale fault system that traverses the Sichuan-Tibet traffic corridor. Determining its late Quaternary activity is thus crucial for assessing seismic hazards and guiding the planning of this critical ...
Mingming Han, Mingming Han, Shiyuan Wang, Yanbao Li, Lichun Chen, Xuemei Li, Dongbing Wang, Xiaowen Zeng   +7 more
doaj   +1 more source

Late Quaternary investigation of sediments from Vankervelsvlei

, 2022
This study investigates Late Quaternary sediments from Vankervelsvlei, a peatland located at 152 m above present sea level at the southern Cape coast of South Africa.
Bliedtner, Marcel, Carr, Andrew S, Zech, Michael, Zech, Roland, Strobel, Paul, Glaser, Bruno, Haberzettl, Torsten, Du Plessis, Nadia, Struck, Julian, Meadows, Michael E, Quick, Lynne J   +10 more
core   +1 more source

Quartz Crystallinity Index of Arabian Sands and Sandstones

Earth and Space Science, 2021
Although quartz crystallinity index (QCI) was developed more than four decades ago, it remains a relatively new tool used in provenance studies. This study examines QCI values of Arabian sands (Quaternary sands from Nafud, Dahna, and AlRub'AlKhali ...
Omar A. Radwan, John D. Humphrey, Khalid A. Al‐Ramadan   +2 more
doaj   +1 more source

Late-Quaternary paleoearthquakes along the Liulengshan Fault on the northern Shanxi Rift system

Frontiers in Earth Science, 2023
The Liulengshan Fault (LLSF), which lies on the northeastern edge of the Ordos Plateau, is a controlling boundary fault in the northern part of the Shanxi Rift system (SRS).
Wen Sun, Wen Sun, Wen Sun, Honglin He, Honglin He, Feng Shi, Feng Shi, Zhanyu Wei, Zhanyu Wei, Haoyue Sun, Haoyue Sun, Peng Su, Peng Su   +12 more
doaj   +1 more source

Eastern Mediterranean surface water temperatures and d18O composition during deposition of sapropels in the late Quaternary [PDF]

, 2003
Water column stratification increased at climatic transitions from cold to warm periods during the lateQuaternary and led to anoxic conditions and sapropel formation in the deep eastern Mediterranean basins.
Struck, U., Erlenkeuser, H., Emeis, K.C., Rossignol-Strick, M., Howell, M. W., Emeis, K.-C., Oba, T., Kroon, Dirk, Schulz, H., Kroon, D., Mackensen, Andreas, Sakamoto, T., Emeis, K. C., Koizumi, I., Ishizuka, S., Mackensen, A., Howell, M.W.   +16 more
core   +1 more source

Refining Rates of Active Crustal Deformation in the Upper Plate of Subduction Zones, Implied by Geological and Geodetic Data: The E-Dipping West Crati Fault, Southern Italy

Remote Sensing, 2022
We investigate crustal deformation within the upper plate of the Ionian Subduction Zone (ISZ) at different time scales by (i) refining geodetic rates of crustal extension from continuous Global Navigation Satellite System (GNSS) measurements and (ii ...
Marco Meschis, Giordano Teza, Enrico Serpelloni, Letizia Elia, Giovanni Lattanzi, Miriana Di Donato, Silvia Castellaro   +6 more
doaj   +1 more source