@article{MTMT:26724970,
	title = {Forecasting transitions in monogenetic eruptions using the geologic record},
	url = {https://m2.mtmt.hu/api/publication/26724970},
	author = {Kereszturi, Gabor and Bebbington, Mark and Németh, Károly},
	doi = {10.1130/G38596.1},
	journal-iso = {GEOLOGY},
	journal = {GEOLOGY},
	volume = {45},
	unique-id = {26724970},
	issn = {0091-7613},
	year = {2017},
	eissn = {1943-2682},
	pages = {283-286}
}

@article{MTMT:26395400,
	title = {Phreatomagmatic and water-influenced Strombolian eruptions of a small-volume parasitic cone complex on the southern ringplain of Mt. Ruapehu, New Zealand: Facies architecture and eruption mechanisms of the Ohakune Volcanic Complex controlled by an unstable fissure eruption},
	url = {https://m2.mtmt.hu/api/publication/26395400},
	author = {Kósik, Szabolcs and Németh, Károly and Kereszturi, G and Procter, J N and Zellmer, G F and Geshi, N},
	doi = {10.1016/j.jvolgeores.2016.07.005},
	journal-iso = {J VOLCANOL GEOTH RES},
	journal = {JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH},
	volume = {327},
	unique-id = {26395400},
	issn = {0377-0273},
	year = {2016},
	eissn = {1872-6097},
	pages = {99-115}
}

@article{MTMT:25663924,
	title = {Shallow-seated explosions in the construction of the Motukorea tuff ring (Auckland, New Zealand): Evidence from lithic and sedimentary characteristics},
	url = {https://m2.mtmt.hu/api/publication/25663924},
	author = {Agustin-Flores, Javier and Németh, Károly and Cronin, Shane J and Lindsay, Jan M and Kereszturi, Gabor},
	doi = {10.1016/j.jvolgeores.2015.09.013},
	journal-iso = {J VOLCANOL GEOTH RES},
	journal = {JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH},
	volume = {304},
	unique-id = {25663924},
	issn = {0377-0273},
	year = {2015},
	eissn = {1872-6097},
	pages = {272-286}
}

@article{MTMT:1936966,
	title = {Ilchulbong tuff cone, Jeju Island, Korea, revisited: A compound monogenetic volcano involving multiple magma pulses, shifting vents, and discrete eruptive phases},
	url = {https://m2.mtmt.hu/api/publication/1936966},
	author = {Sohn, YK and Cronin, SJ and Brenna, M and Smith, IEM and Németh, Károly and White, JDL and Murtagh, RM and Jeon, YM and Kwon, CW},
	doi = {10.1130/B30447.1},
	journal-iso = {GEOL SOC AM BULL},
	journal = {GEOLOGICAL SOCIETY OF AMERICA BULLETIN},
	volume = {124},
	unique-id = {1936966},
	issn = {0016-7606},
	year = {2012},
	eissn = {1943-2674},
	pages = {259-274}
}

@article{MTMT:1506098,
	title = {Growth of phreatomagmatic explosion craters: A model inferred from Suoana crater in Miyakejima Volcano, Japan},
	url = {https://m2.mtmt.hu/api/publication/1506098},
	author = {Geshi, N and Németh, Károly and Oikawa, T},
	doi = {10.1016/j.jvolgeores.2010.11.012},
	journal-iso = {J VOLCANOL GEOTH RES},
	journal = {JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH},
	volume = {201},
	unique-id = {1506098},
	issn = {0377-0273},
	abstract = {A subvertical cross section of a maar-diatreme volcano is exposed in the wall of the A.D. 2000 caldera on Miyakejima Volcano. The maar, Suoana, is one of the lateral vents of this volcano and it was inferred to be formed in the 7th century. The subvertical wall of the A.D. 2000 caldera truncated the Suoana maar crater at its center revealing the near comlete cross section of this small maar-diatreme volcano. Exposed in the cross section are a 400. m wide maar crater, an associated tuff ring with a maximum thickness of 20. m, a diatreme extending vertically to a depth of about 220. m from the floor of the maar crater, and a feeder dike connected to the base of the diatreme. The depth of the diatreme structure is about 260. m from the original ground surface. The outline of the diatreme resembles an upward-opening funnel with an almost vertical wall below 560. m asl and an upward flaring wall above 560. m asl. Coarse grained volcanic breccia fills the diatreme, the deposits of which can be divided into 6 units based on lithological and structural characteristics. The upper half of the diatreme is filled with landslide deposits, mainly derived from the surrounding crater wall. The bottom of the diatreme is occupied by massive explosion breccia. Some coherent blocks were detached from the wall of the diatreme and preserved in the diatreme fill. The Y-shaped cross-sectional geometry of the Suoana diatreme is the result of a combination of an underground subsidence in the lower part of the diatreme and the surface landslide in its upper part. The inwardly-inclined stratification of pyroclastic rock units and development of many small faults in the diatreme-filling breccia indicate successive collapse and deformation of these materials within the diatreme during the eruption. The upper part of the diatreme was formed by the landslides of the crater wall induced by the subsidence of the crater floor. Discharge of tephra from the bottom of the diatreme caused infill subsidence, which induced sliding of the inner wall of the crater. As a result, the topographic diameter of the crater became much larger than that of the diatreme itself. The tephra ring surrounding the crater consists mainly of pyroclastic fall deposits. © 2010 Elsevier B.V.},
	keywords = {MAAR; diatreme; phreatomagmatic eruption; volcano; Miyakejima},
	year = {2011},
	eissn = {1872-6097},
	pages = {30-38}
}

@article{MTMT:1506102,
	title = {The role of external environmental factors in changing eruption styles of monogenetic volcanoes in a Mio/Pleistocene continental volcanic field in western Hungary},
	url = {https://m2.mtmt.hu/api/publication/1506102},
	author = {Kereszturi, G and Németh, Károly and Csillag, Gábor and Balogh, Kadosa and Kovács, János},
	doi = {10.1016/j.jvolgeores.2010.08.018},
	journal-iso = {J VOLCANOL GEOTH RES},
	journal = {JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH},
	volume = {201},
	unique-id = {1506102},
	issn = {0377-0273},
	abstract = {The occurrence, shape, structure and eruption style of monogenetic volcanoes, such as maars, tuff rings, tuff cones and scoria cones, are generally governed by several internal (composition of the magma, magmatic flux, ascent rate, viscosity, volatile contents) and external conditions (regional and local tectonics, topography, and the presence of surfacial, ground and meteoric water). These controlling factors are together responsible for the eruption style, distribution pattern, volcanic facies architecture and morphology of the monogenetic volcanic landforms. The Late Miocene to Pleistocene Bakony-Balaton Highland Volcanic Field (BBHVF) in western Hungary is a typical small sized (< 50 eruption centres), basaltic, intraplate "monogenetic" volcanic field. Generally, initial eruptions of the BBHVF were phreatomagmatic (n = ~. 28); however, a lesser number (n = ~. 14) of predominantly scoria cone forming eruptions are also inferred. The temporal distribution of the Strombolian style scoria cones was concentrated mostly between 3 and 2.5. Ma. A detailed study of the changes in eruption styles recorded in the pyroclastic sequences suggested a change from a conventional phreatomagmatic to a magmatic fragmentation style during the activity of the volcanic field. A clear correlation has been identified between the long-term environmental changes of the region that resulted in a gradual shift from a more phreatomagmatic eruption style to a more magmatic eruption style. Detailed examination of the temporal distribution of K-Ar and Ar-Ar radiometric data, Digital Elevation Model and Dense Rock Equivalent-based volume calculations of eruptive products and origin of pyroclastic rocks (e.g. phreatomagmatic or magmatic) preserved in variously eroded monogenetic volcanoes were utilized to integrate available volcanological and climatological data to identify potential links between external and internal controlling parameters that responsible for long-term eruption style changes. At least 6 volcanic cycles have been identified by cluster analysis. Time gap between the cycles were vary from 1.66 up to 0.06Ma, while the average eruption recurrence rate was ~0.1078Ma/event. The time-volume diagram of the volcanism of BBHVF have shown time-predictive behavior combined with low magma-flux (total preserved volume ~2.867km3) and output rates (0.53km3/Ma for the entire volcanic field and 0.90km3/Ma for the last 5cycles), suggesting that volcanism was largely tectonically-controlled and not magmatically-controlled.Furthermore, the topographic differences between the northern ("elevated") and southern ("basin-like") parts of the volcanic field, are also important in local differences in dominant fragmentation style, because the elevated part of the field was prone to host large, more magmatically-evolved volcanoes, than on the lower, water-saturated, unconsolidated sediments, which favored to the magma/water interaction driven phreatomagmatic fragmentation. The third controlling parameter, which seems to play an important role in controlling the eruptive style of monogenetic volcanism at BBHVF, was the paleoclimate fluctuation, especially during the time interval of 3.0 to 2.5. Ma. Thus, mainly the long-term environmental changes (e.g. aridification) have been response the shifting fragmentation style from phreatomagmatic to more magmatic ones. © 2010 Elsevier B.V.},
	keywords = {FRAGMENTATION; topography; phreatomagmatic; Tectonically-controlled; Magmatic flux; Magmatic; Climatic change; Earth, Cosmic and Environm. Res.,},
	year = {2011},
	eissn = {1872-6097},
	pages = {227-240},
	orcid-numbers = {Kovács, János/0000-0001-7742-5515}
}

@article{MTMT:1506099,
	title = {Influence of the substrate on maar-diatreme volcanoes - An example of a mixed setting from the Pali Aike volcanic field, Argentina},
	url = {https://m2.mtmt.hu/api/publication/1506099},
	author = {Ross, P -S and Delpit, S and Haller, M J and Németh, Károly and Corbella, H},
	doi = {10.1016/j.jvolgeores.2010.07.018},
	journal-iso = {J VOLCANOL GEOTH RES},
	journal = {JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH},
	volume = {201},
	unique-id = {1506099},
	issn = {0377-0273},
	abstract = {The morphologic parameters, pyroclastic deposits and evolution of maar-diatreme volcanoes are affected by the type of environment in which they are emplaced. End-member cases are a hard substrate (rocks) and a soft substrate (unconsolidated volcaniclastic or sedimentary deposits). In this paper, we present an example of a volcanic complex emplaced in a mixed hard-soft setting from the Pali Aike volcanic field (PAVF) near the Argentina-Chile border. The Plio-Pleistocene PAVF is an alkaline, mafic, back-arc monogenetic field which contains over 100 phreatomagmatic volcanoes. The studied volcanic complex contains two large coalescent maars overlain by scoria and spatter. The 1.4 × 1.3. km East Maar has better exposures than the shallower, 1.9. km-wide West Maar and seems to have been less modified by post-eruptive processes. The tephra rim of the East Maar was studied in detail and we infer it was produced mostly by base surges from phreatomagmatic eruption columns, with rare instances of intercalated scoria fall layers. Based on regional information, the general pre-maar stratigraphy is dominated by sedimentary and volcaniclastic rocks of the Magallanes Basin, including a thick poorly consolidated upper unit dating from the Miocene. These are overlain by Plio-Pleistocene fluvio-glacial deposits and PAVF lavas, some of which are exposed in the East Maar just below the phreatomagmatic deposits. All of these units are represented as lithic clasts in the tephra rim of the East Maar, the most abundant being the clasts from the earlier basaltic lavas and rock fragments derived from the glacial deposits. There is no specific evidence for a deep diatreme under the East Maar, and in this particular case, the mixed environment seems to have produced a maar-diatreme volcano typical of a soft substrate. © 2010 Elsevier B.V.},
	keywords = {MAAR; phreatomagmatism; soft substrate; hard substrate; Argentina},
	year = {2011},
	eissn = {1872-6097},
	pages = {253-271}
}

@article{MTMT:1384516,
	title = {Volcanic structures and oral traditions of volcanism of Western Samoa (SW Pacific) and their implications for hazard education},
	url = {https://m2.mtmt.hu/api/publication/1384516},
	author = {Németh, Károly and Cronin, SJ},
	doi = {10.1016/j.jvolgeores.2009.06.010},
	journal-iso = {J VOLCANOL GEOTH RES},
	journal = {JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH},
	volume = {186},
	unique-id = {1384516},
	issn = {0377-0273},
	abstract = {The Samoan Islands have experienced >2 million years of volcanism, culminating in historic eruptions at both the east and western ends of the chain including a major lava-producing episode on the island of Savai'i from AD 1905-1911. Upolu in Western Samoa has several areas mapped as early Holocene in age (>5 ka), but here we present new evidence for fresh volcanic landforms and deposits, supported by a radiocarbon date of 1915 +/- 65 yrs B.P., giving a maximum age to a phreatomagmatic tuff cone offshore of Cape Tapaga, east Upolu. In addition, we report on a parallel investigation of the oral traditions of communities surrounding fresh volcanic landforms that may reflect distant "volcanic memories" passed down over generations. To accommodate Samoan cultural structures, oral traditional knowledge was sought through semi-structured interviews with small groups (3-4) or individuals. Samoan facilitators focused on high-ranking and traditionally respected (particularly elderly) individuals for explanations of the origins of local features, including their genesis, use and any related geo-hazards. Areas targeted were those where young eruptions (<3500 yr BP) were suspected from geological mapping. In stark contrast to communities in Vanuatu, Papua New Guinea or the Solomon Islands, the village communities show extremely limited knowledge of their volcanic heritage. Youthful volcanic landforms are often not recognised as such and appear to play little role in everyday life. Few, if any, legends are attached to any volcanic feature. Instead, oral traditions deal primarily with the origins of Samoans (overlain by strong Christian teachings), and past disputes/battles and wrongdoings between tribes/neighbours. The only exceptions to this were identified in legends from East Upolu, where offshore islands (tuff cones) are associated with late Holocene explosive phreatomagmatic volcanism. Maps drawn by individuals and groups interviewed, highlighted the resources and landscapes important in their lives. The majority of these were prepared as 3D oblique-view sketches, rather than plan-views, showing little in common with typical hazard maps used in the area. In addition, maps were commonly restricted strictly to boundaries of local communities, ignoring major features (such as fresh volcanic cones) that were in the territory of "next door" villages. These perspectives need to be focused upon in future iterations of hazard maps and hazard-education programmes for Samoa and similar Polynesian communities. (C) 2009 Elsevier B.V. All rights reserved.},
	keywords = {MANAGEMENT; BASALT; COMMUNITY; PROVINCE; SEAMOUNT; SETTLEMENT; ARCHAEOLOGY; GEOCHRONOLOGY; MYTHS; AMERICAN-SAMOA; Samoa; legend; oral tradition; phreatomagmatic; volcanic island; AMBAE ISLAND; Vanuatu},
	year = {2009},
	eissn = {1872-6097},
	pages = {223-237}
}

@article{MTMT:1384782,
	title = {Phreatomagmatic volcanic hazards where rift-systems meet the sea, a study from Ambae Island, Vanuatu},
	url = {https://m2.mtmt.hu/api/publication/1384782},
	author = {Németh, Károly and Cronin, S J},
	doi = {10.1016/j.jvolgeores.2008.08.011},
	journal-iso = {J VOLCANOL GEOTH RES},
	journal = {JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH},
	volume = {180},
	unique-id = {1384782},
	issn = {0377-0273},
	abstract = {Ambae Island is a mafic stratovolcano located in the northern Vanuatu volcanic arc and has a NE-SW rift-controlled elongated shape. Several hundred scoria cones and fissure-fed lava fields occur along its long axis. After many decades of quiescence, Ambae Island erupted on the 28th of November 2005, disrupting the lives of its 10,000 inhabitants. Its activity remained focused at the central (crater-lake filled) vent and this is where hazard-assessments were focused. These assessments initially neglected that maars, tephra cones and rings occur at each tip of the island where the eruptive activity occurred < 500 and < 300 yr B.P. The products of this explosive phreatomagmatic activity are located where the rift axis meets the sea. At the NE edge of the island five tephra rings occur, each comparable in size to those on the summit of Ambae. Along the NE coastline, a near-continuous cliff section exposes an up to 25 m thick succession of near-vent phreatomagmatic tephra units derived from closely spaced vents. This can be subdivided into two major lithofacies associations. The first association represents when the locus of explosions was below sea level and comprises matrix-supported, massive to weakly stratified beds of coarse ash and lapilli. These are dominant in the lowermost part of the sequence and commonly contain coral fragments, indicating that the loci of explosion were located within a reef or coral sediment near the syn-eruptive shoreline. The second type indicate more stable vent conditions and rapidly repeating explosions of high intensity, producing fine-grained tephra with undulatory bedding and cross-lamination as well as megaripple bedforms. These surge and fall beds are more common in the uppermost part of the succession and form a few-m-thick pile. An older tephra succession of similar character occurs below, and buried trees in growth position, as well as those flattened within base surge beds. This implies that the centre of this eruption was very near the coastline. The processes implied by these deposits are amongst the most violent forms of volcanism on this island. In addition, the lowland and coastal areas affected by these events are the most heavily populated. This circumstance is mirrored on many similar volcanic islands, including the nearby SW Pacific examples of Taveuni (Fiji), Upolu and Savai'i (Samoa), and Ambrym (Vanuatu). These locations are paradoxically often considered safe areas during summit/central-vent eruptions, simply because they are farthest from the central sources of ash-fall and lahar hazard. The observations presented here necessitate a revision of this view. © 2008 Elsevier B.V. All rights reserved.},
	keywords = {Seawater; BASALT; base surge; accretionary lapilli; sideromelane; scoria; rift; tuff cone; tuff ring; phreatomagmatic; volcanic island; Vanuatu; MAAR; phreatomagmatism; volcanoes; Pacific Ocean; Pacific islands; Melanesia; volcanic eruption; island arc; Anthozoa; Aoba; tuff; stratovolcano; Explosives; Oceanography; Hazards; Explosions; Coastal zones},
	year = {2009},
	eissn = {1872-6097},
	pages = {246-258}
}