Results 61 to 70 of about 771 (201)

Annual proxy data from Lago Grande di Monticchio (southern Italy) between 76 and 112 ka: new chronological constraints and insights on abrupt climatic oscillations [PDF]

Climate of the Past, 2014
We present new annual sedimentological proxies and sub-annual element scanner data from the Lago Grande di Monticchio (MON) sediment record for the sequence 76–112 thousand years before present (ka).
C. Martin-Puertas, A. Brauer, S. Wulf, F. Ott, S. Lauterbach, P. Dulski   +5 more
doaj   +1 more source

Cryptotephra from a ~120 ka Tondano eruption in a sediment core from Lake Towuti (Indonesia)

Journal of Quaternary Science, Volume 40, Issue 5, Page 741-746, July 2025.
ABSTRACT Southeast Asia is one of the most volcanically active regions in the world, yet their long‐term eruptive history has been comparatively little studied. In particular, little work has explored the potential of sedimentary archives to record distal cryptotephra, which may help in identifying some of the region's larger Quaternary eruptions. Here,
Jinheum Park, Christine S. Lane, Clive Oppenheimer, Céline‐Marie Vidal, Christina J. Manning, Francesca Forni, Hendrik Vogel, Satria Bijaksana, James M. Russell   +8 more
wiley   +1 more source

The environmental and evolutionary history of Lake Ohrid (FYROM/Albania): interim results from the SCOPSCO deep drilling project [PDF]

Biogeosciences, 2017
This study reviews and synthesises existing information generated within the SCOPSCO (Scientific Collaboration on Past Speciation Conditions in Lake Ohrid) deep drilling project.
B. Wagner, T. Wilke, A. Francke, C. Albrecht, H. Baumgarten, A. Bertini, N. Combourieu-Nebout, A. Cvetkoska, M. D'Addabbo, T. H. Donders, K. Föller, B. Giaccio, A. Grazhdani, T. Hauffe, J. Holtvoeth, S. Joannin, E. Jovanovska, J. Just, K. Kouli, A. Koutsodendris, S. Krastel, J. H. Lacey, N. Leicher, M. J. Leng, Z. Levkov, K. Lindhorst, A. Masi, A. M. Mercuri, S. Nomade, N. Nowaczyk, K. Panagiotopoulos, O. Peyron, J. M. Reed, E. Regattieri, L. Sadori, L. Sagnotti, B. Stelbrink, R. Sulpizio, S. Tofilovska, P. Torri, H. Vogel, T. Wagner, F. Wagner-Cremer, G. A. Wolff, T. Wonik, G. Zanchetta, X. S. Zhang   +46 more
doaj   +1 more source

Exploring soil erosion in the lake basins of Michoacán, Mexico: From sediment cores to conservation policies

Journal of Quaternary Science, Volume 40, Issue 4, Page 671-683, May 2025.
ABSTRACT Understanding soil erosion, its history and links to potential drivers such as land use (particularly agriculture and deforestation), different cultural perspectives and climate change are crucial for the development of effective management and conservation strategies.
Jahzeel Aguilera Lara, SARAH E. Metcalfe
wiley   +1 more source

The Hydroclimate and Environmental Response to Middle Miocene Warming in the Southwestern USA: Stable Isotope Evidence

Paleoceanography and Paleoclimatology, Volume 40, Issue 5, May 2025.
Abstract Predictions for the southwestern US with warming often suggest increased aridity. We investigate the sedimentary record of the Miocene Climate Optimum and Transition (MCO and MCT; ∼17–14 Ma) in northern New Mexico to understand the impact of warmer global temperatures and higher pCO2 on southwestern US hydroclimate. The MCO and MCT comprised a
Siânin Spaur, Daniel J. Koning, Matthew Heizler, Scott Aby, Garrett Williamson, Jeffrey R. Knott, R. Paul Acosta, Jeremy K. C. Rugenstein   +7 more
wiley   +1 more source

Refining the Eruption Chronology of Atitlán Caldera Through Zircon Double‐Dating

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 3, March 2025.
Abstract Precise dating of Quaternary volcanism is vital for risk mitigation, understanding volcano‐climate interactions, and deciphering the evolution of large silicic magmatic systems. The Atitlán caldera in Guatemala has experienced major eruptions that challenge radiometric dating techniques and complicate eruption chronology in this densely ...
Alejandro Cisneros de León, Martin Danišík, Axel K. Schmitt, Julie C. Schindlbeck‐Belo, Steffen Kutterolf, Tushar Mittal, Jennifer M. Garrison, Kenneth W. W. Sims   +7 more
wiley   +1 more source

Paleo‐Earthquake Fingerprints and Along‐Strike Slip Variation of the Silent Mt. Morrone Normal Fault (Central Italy): A Structural‐Geochemical Approach

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 2, February 2025.
Abstract This study provides insights into the tectonic evolution of the normal Mt Morrone Fault System (MMFS) in Central Italy and highlights the utility of multidisciplinary approaches in reconstructing the seismic history of dormant fault systems. The MMFS comprises two parallel normal faults that traverse the western slope of Mt.
S. Bello, P. Galli, M. G. Perna, E. Peronace, P. Messina, G. Rosatelli, C. Andrenacci, G. Lavecchia, F. Pietrolungo, A. Consalvo, V. Mouslopoulou, F. Brozzetti   +11 more
wiley   +1 more source

Increasing Tephra Deposition in Northeastern North America Points to Atmospheric Circulation Changes at the Early Mid Holocene Transition

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 1, 16 January 2025.
Abstract The number of cryptotephra (non‐visible volcanic ash) records from northeastern North America is unique in the continent. The resulting tephrostratigraphic framework includes ash deposits sourced from volcanic arcs across the Northern Hemisphere and is an exceptional resource for correlating and dating paleoenvironmental records.
A. J. Monteath, B. J. L. Jensen, L. J. Davies, M. S. M. Bolton, P. D. M. Hughes, H. Mackay, M. E. Edwards, M. Finkenbinder, R. K. Booth, L. C. Cwynar, J. Harvey, S. Pyne‐O’Donnell, C. N. Papp, D. G. Froese, G. Mallon, M. J. Amesbury, R. J. Mayfield   +16 more
wiley   +1 more source

Tephrochronology of New Volcanic Ash

The Quaternary Research (Daiyonki-Kenkyu), 1963
When a volcano eruptes, its pyroclastics are deposited over the surface of the earth, so the depositional features of the pyroclastics tell us the history of volcanic activities. Therefore, if we wish to investigate the tephrochronology of pyroclastics which spread over the surface of the earth, the following works should be done.1) At first, we must ...
openaire   +2 more sources

SEQUENCE STRATIGRAPHY AND PALEONTOLOGY OF THE UPPER MIOCENE PISCO FORMATION ALONG THE WESTERN SIDE OF THE LOWER ICA VALLEY (ICA DESERT, PERU)

Rivista Italiana di Paleontologia e Stratigrafia, 2017
The sequence stratigraphic framework and a summary of the fossil fauna of the upper Miocene portion of the Pisco Formation exposed along the western side of the Ica River (southern Peru) is presented through a new geological map encompassing an area of ...
CLAUDIO DI CELMA, ELISA MALINVERNO, GIULIA BOSIO, ALBERTO COLLARETA, KAREN GARIBOLDI, ANNA GIONCADA, GIANCARLO MOLLI, DANIELA BASSO, RAFAEL M. VARAS-MALCA, PIETRO PAOLO PIERANTONI, IGOR M. VILLA, OLIVIER LAMBERT, WALTER LANDINI, GIOVANNI SARTI, GINO CANTALAMESSA, MARIO URBINA, GIOVANNI BIANUCCI   +16 more
doaj   +1 more source