Mount Mazama eruption: Calendrical age verified and atmospheric impact assessed

Zdanowicz, Christian; Zielinski, Gregory A.; Germani, Mark S.

doi:10.1130/0091-7613(1999)027<0621:mmecav>2.3.co;2

Cited by 281 publications

(217 citation statements)

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“…Stratigraphy of site 9 on Upper Cedar Creek fan showing Mazama tephra overlying a buried soil developed in alluvial gravels. OSL results for USU-419 (excavated at night, dose rate from bulksediment analysis) are consistent with the age of the overlying tephra (Zdanowicz, 1999) and a period of soil formation between deposition of the alluvial gravels and the tephra. Figure 11.…”

Section: Discussionsupporting

confidence: 54%

“…Samples of the tephra were analyzed by electron microprobe (Washington State University) and ICP-MS analysis (Boise State University) for provenance. Results indicate the tephra originated from the 7627 ± 150 cal yr BP (Zdanowicz et al, 1999) eruption of Mt. Mazama that formed present-day Crater Lake in Oregon, USA (~700 km west of the LRR).…”

Section: Comparisons To External Age Controlmentioning

confidence: 99%

See 1 more Smart Citation

Luminescence dating without sand lenses: An application of OSL to coarse-grained alluvial fan deposits of the Lost River Range, Idaho, USA

Kenworthy¹,

Rittenour²,

Pierce³

et al. 2014

Quaternary Geochronology

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Section: Discussionsupporting

confidence: 54%

Section: Comparisons To External Age Controlmentioning

confidence: 99%

Luminescence dating without sand lenses: An application of OSL to coarse-grained alluvial fan deposits of the Lost River Range, Idaho, USA

Kenworthy¹,

Rittenour²,

Pierce³

et al. 2014

Quaternary Geochronology

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“…Volcanic deposit tephras often serve this purpose. For example, the Mazama tephra, which occurs over a large area of western North America, has been dated to 7627 ± 150 cal yr BP (Zdanowicz et al, 1999). The Hekla 1104 tephra originating from Iceland, but distributed as far east as Ireland, is historically documented to AD 1104 or 846 cal yr BP (Boygle, 1999).…”

Section: Variablesmentioning

confidence: 99%

The Neotoma Paleoecology Database, a multiproxy, international, community-curated data resource

et al. 2018

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The Neotoma Paleoecology Database is a community-curated data resource that supports interdisciplinary global change research by enabling broad-scale studies of taxon and community diversity, distributions, and dynamics during the large environmental changes of the past. By consolidating many kinds of data into a common repository, Neotoma lowers costs of paleodata management, makes paleoecological data openly available, and offers a high-quality, curated resource. Neotoma's distributed scientific governance model is flexible and scalable, with many open pathways for participation by new members, data contributors, stewards, and research communities. The Neotoma data model supports, or can be extended to support, any kind of paleoecological or paleoenvironmental data from sedimentary archives. Data additions to Neotoma are growing and now include >3.8 million observations, >17,000 datasets, and >9200 sites. Dataset types currently include fossil pollen, vertebrates, diatoms, ostracodes, macroinvertebrates, plant macrofossils, insects, testate amoebae, geochronological data, and the recently added organic biomarkers, stable isotopes, and specimen-level data. Multiple avenues exist to obtain Neotoma data, including the Explorer map-based interface, an application programming interface, the neotoma R package, and digital object identifiers. As the volume and variety of scientific data grow, community-curated data resources such as Neotoma have become foundational infrastructure for big data science.

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“…The largest known volcanic eruptions of the Holocene include those of Kikai, Japan (early 6th millennium BC; Machida and Arai, 1983), Mt Mazama, USA (ca 5677 BC; Bacon, 1983;Zdanowicz et al, 1999), and Tambora, Indonesia (1815; Sigurdsson and Carey, 1989;Oppenheimer, 2003), with estimated magnitudes (total erupted mass) exceeding 10 14 kg. Kuwae, Vanuatu (ca AD 1459; Monzier et al, 1994), Baitoushan, China/North Korea (late 10th-early 11th century AD; Horn and Schmincke, 2000), the 'Minoan' eruption of Santorini, Greece (mid-17th century BC; Sigurdsson et al, 1990;Druitt et al, 1999), and Taupo, New Zealand (ca AD 181; Walker, 1980;Wilson, 1985) are in the next rank in terms of size, falling in the range 5 × 10 13 to 10 14 kg.…”

Section: Introductionmentioning

confidence: 99%

Ice core and palaeoclimatic evidence for the timing and nature of the great mid‐13th century volcanic eruption

Oppenheimer

2003

Intl Journal of Climatology

103

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Ice cores from both the Arctic and Antarctic record a massive volcanic eruption in around AD 1258. The inter-hemispheric transport of ash and sulphate aerosol suggests a low-latitude explosive eruption, but the volcano responsible is not known. This is remarkable given estimates of the magnitude of the event, which range up to 5 × 10 14 -2 × 10 15 kg (∼200-800 km 3 of dense magma), which would make this the largest eruption of the historic period, and one of the very largest of the Holocene. The associated collapse caldera could have had a diameter up to 10-30 km. Palaeoclimate reconstructions indicate very cold austral and boreal summers in AD 1257-59, consistent with known patterns of continental summer cooling following tropical, sulphur-rich explosive eruptions. This suggests an eruption in AD 1257, producing a stronger climate forcing than hitherto recognized.

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Mount Mazama eruption: Calendrical age verified and atmospheric impact assessed

Cited by 281 publications

References 0 publications

Luminescence dating without sand lenses: An application of OSL to coarse-grained alluvial fan deposits of the Lost River Range, Idaho, USA

Luminescence dating without sand lenses: An application of OSL to coarse-grained alluvial fan deposits of the Lost River Range, Idaho, USA

The Neotoma Paleoecology Database, a multiproxy, international, community-curated data resource

Ice core and palaeoclimatic evidence for the timing and nature of the great mid‐13th century volcanic eruption

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