Volcanic Activity in Mexico During the Holocene

2019 ◽  
pp. 129-170
Author(s):  
José L. Macías ◽  
José L. Arce
Keyword(s):  
Volcanic Activity ◽  
The Holocene

40Ar/39Ar dating of tuff vents in the Campi Flegrei caldera (southern Italy): toward a new chronostratigraphic reconstruction of the Holocene volcanic activity

2011 ◽  
Vol 73 (9) ◽  
pp. 1323-1336 ◽  
Author(s):  
L. Fedele ◽  
D. D. Insinga ◽  
A. T. Calvert ◽  
V. Morra ◽  
A. Perrotta ◽  
...  
Keyword(s):  
Volcanic Activity ◽  
Southern Italy ◽  
Campi Flegrei ◽  
The Holocene ◽  
Campi Flegrei Caldera

Lacustrine record of last millennia eruptions in Northern Chilean Patagonia (45–47°S)

The Holocene ◽  
2017 ◽  
Vol 27 (8) ◽  
pp. 1227-1251 ◽  
Author(s):  
Nathalie Fagel ◽  
Denisse Alvarez ◽  
Olivier Namur ◽  
Jean-Luc Devidal ◽  
Laurence Nuttin ◽  
...  
Keyword(s):  
Volcanic Activity ◽  
Tectonic Setting ◽  
Temporal Distribution ◽  
Visual Observation ◽  
Tephra Layer ◽  
Radiocarbon Dates ◽  
The Holocene ◽  
Chilean Patagonia ◽  
Major Chemical ◽  
Glass Shards

Due to its tectonic setting, the Andean Southern Volcanism Zone (SSVZ) is characterized by frequent volcanic activity. Chilean Patagonia lake sediments represent powerful archives of historical and past eruptions since the deglaciation. The lacustrine tephra record is investigated in 10 Holocene sedimentary cores collected in five lakes located along a 45–47° transect through Northern Chilean Patagonia. All the tephras identified by visual observation and strong magnetic susceptibility signal have been characterized for the major chemical composition of their glass shards by microprobe analyses, bulk mineralogical content by x-ray diffraction analyses and grain-size distribution by laser diffraction. Special care has been given to the chronostratigraphical framework in order to determine the age interval for each tephra layer and further to correlate the lacustrine records. The sedimentary age models are based on 210Pb data and calibrated radiocarbon dates measured on macroremains or reservoir effect-corrected bulk sediment. To present a more complete tephrochronological record, 28 microtephras have been confirmed by their mineralogical signature. Our lacustrine tephra record is compared with the Holocene eruptions registered in both surface deposits and continental, lacustrine and peat bog, environments. The different lacustrine eruption records are discussed according to their origin, age and location (distance from volcanoes, wind direction and dispersion of eruption produced). Our data confirm that Chilean Ande SSVZ tephras are mainly derived from historical and past Hudson eruptions. However, the peculiar low-K2O signature of the glass shards observed in one tephra layer from the Northernmost lake, Lake Thompson, confirms an influence from some other SSVZ volcanoes with low-abundance magma type, such as Maca and Cay. Our tephrochronological data compliment the database for volcanic activity in Chile bringing new information essential for the running discussion on the temporal distribution of eruptions over the Holocene.

scholarly journals Radiocarbon Dating and Tephrochronology in Kamchatka

Radiocarbon ◽  
1993 ◽  
Vol 35 (3) ◽  
pp. 463-476 ◽  
Author(s):  
O. A. Braitseva ◽  
L. D. Sulerzhitsky ◽  
S. N. Litasova ◽  
I. V. Melekestsev ◽  
V. V. Ponomareva
Keyword(s):  
Volcanic Activity ◽  
Radiocarbon Dating ◽  
The Holocene

We discuss results of 14C dates obtained from areas of young volcanoes in Kamchatka. We apply these dates to reconstructing regional volcanic activity during the Holocene.

The red coral deposits of the Graham Bank area: Constraints on the Holocene volcanic activity of the Sicilian Channel

GeoResJ ◽  
2017 ◽  
Vol 13 ◽  
pp. 126-133 ◽  
Author(s):  
E. Lodolo ◽  
R. Sanfilippo ◽  
G. Rajola ◽  
S. Canese ◽  
F. Andaloro ◽  
...  
Keyword(s):  
Volcanic Activity ◽  
The Holocene ◽  
Red Coral

scholarly journals Unraveling the Holocene Eruptive History of Flores Island (Azores) Through the Analysis of Lacustrine Sedimentary Records

2021 ◽  
Vol 9 ◽  
Author(s):  
Mariana Andrade ◽  
Ricardo S. Ramalho ◽  
Adriano Pimentel ◽  
Armand Hernández ◽  
Steffen Kutterolf ◽  
...  
Keyword(s):  
Volcanic Activity ◽  
Volcanic System ◽  
The Holocene ◽  
Eruptive History ◽  
Sedimentary Records ◽  
Glass Shard ◽  
History Of ◽  
Tephra Layers ◽  
Volcanic Islands

Lacustrine sequences from active volcanic settings usually hold a rich and continuous record of tephra layers, providing a critical source of information to reconstruct a most complete eruptive history of a region. Lake sedimentary records on volcanic islands are particularly useful as the typical small size of these islands and their steep subaerial and submarine slopes lead to a lower preservation of potential erodible pyroclastic deposits. Here we explore the lacustrine sedimentary record of Lagoa da Lomba, a crater lake in the central upland area of Flores Island (Azores), to gain insight into the recent eruptive history of this island. The strategic location of Lagoa da Lomba, half distance between the two clusters of recent volcanic activity of the island, together with its long-lasting record, back to 23.52 cal kyr BP, makes this lake a privileged site to investigate the Holocene volcanic history of Flores. Based on a detailed stratigraphic characterization of sediments from a lake transect of three cores, supported by glass shard geochemistry and radiocarbon dating, we recognized four Holocene eruptive events taking place between 6.28 and 2.36 cal kyr BP, demonstrating that the Holocene volcanic activity at Flores Island may have lasted longer than previously reported. Glass shard geochemistry from the different tephra layers suggests three populations, basaltic to trachybasaltic in composition, where the last eruption is the least evolved endmember. Two of the four eruptive events correlate with subaerially-exposed pyroclastic sequences, in terms of stratigraphy and geochemistry. The most recent event recorded at Lagoa da Lomba was constrained to 3.66 – 2.36 cal kyr BP and linked to an eruption sourced from Lagoa Comprida Volcanic System. The second most recent eruptive event was sourced from Lagoa Funda Volcanic System and dated at 3.66 cal kyr BP. Our observations show that Flores experienced vigorous volcanic activity during the Late Holocene. Therefore, contrary to what is assumed, the possibility of future eruptions should be properly considered, and the volcanic hazard here should not be underestimated. Moreover, we highlight the importance of tephrostratigraphy in recent lake sediments to reconstruct past volcanic activity, especially at small volcanic islands, such as Flores, where exposure is poor due to erosion within the limited subaerial area and the dense vegetation.

Signature of Transpressional Tectonics in the Holocene Stratigraphy of Lake Azuei, Haiti: Preliminary Results From a High-Resolution Subbottom Profiling Survey

2018 ◽  
Author(s):  
Marie-Helene Cormier ◽  
Heather Sloan ◽  
Dominique Boisson ◽  
Britta Brown ◽  
Kelly Guerrier ◽  
...  
Keyword(s):  
High Resolution ◽  
The Holocene ◽  
Preliminary Results ◽  
Holocene Stratigraphy ◽  
Subbottom Profiling
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