Fusa Miyake
Biographic Data
| ID | 5597098 |
|---|---|
| NAME | Fusa Miyake |
| GIVEN NAMES | Fusa |
| FAMILY NAME | Miyake |
| SIGNATURE | MIYAKE F |
| AFFILIATIONS | Nagoya University |
| ORCID | 0000-0001-8002-9601 |
| VERIFIED | No |
| TOTAL WORKS | 11 |
| TOTAL CITATIONS | 1054 |
| AUTHOR COUNT | 11 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2012 |
| LATEST PUBLICATION YEAR | 2023 |
| H-INDEX | 6 |
A Wiggle-Matched 297-Yr Tree-Ring Oxygen Isotope Record From Thailand
Regional offsets from Northern Hemisphere radiocarbon ( 14 C) calibration curves are widely recognized for monsoon Asia and often hinder accurate 14 C dating. In this paper, we explore the possible linkage between summer monsoon intensity and 14 C offsets using tree-ring δ 18 O and 14 C data from Thailand. We developed a 297-yr floating tree-ring δ 18 O chronology comprising seven teak log-coffin samples from the Ban Rai rock shelter site, northw…
Two New Millennium-Long Tree-Ring Oxygen Isotope Chronologies (2349–1009 Bce and 1412–466 Bce) From Japan
We present two new millennium-long tree-ring oxygen isotope chronologies for central and northern Japan, based on 9693 annually resolved measurements of tree-ring oxygen isotopes from 39 unearthed samples consisting mainly of Japanese cedar ( Cryptomeria japonica ). These chronologies were developed through cross-dating of tree-ring widths and δ 18 O data from multiple samples covering the periods 2349–1009 BCE (1341 yr) and 1412–466 BCE (947 yr)…
The IntCal20 Northern Hemisphere Radiocarbon Age Calibration Curve (0–55 cal kBP)
Radiocarbon ( 14 C) ages cannot provide absolutely dated chronologies for archaeological or paleoenvironmental studies directly but must be converted to calendar age equivalents using a calibration curve compensating for fluctuations in atmospheric 14 C concentration. Although calibration curves are constructed from independently dated archives, they invariably require revision as new data become available and our understanding of the Earth syste…
More Rapid 14 C Excursions in the Tree-Ring Record
Two radiocarbon ( 14 C) excursions are caused by an increase of incoming cosmic rays on a short time scale found in the Late Holocene (AD 774–775 and AD 993–994), which are widely explained as due to extreme solar proton events (SPE). In addition, a larger event has also been reported at 5480 BC (Miyake et al. 2017a), which is attributed to a special mode of a grand solar minimum, as well as another at 660 BC (Park et al. 2017). Clearly, other ev…
Verification of the Annual Dating of the 10th Century Baitoushan Volcano Eruption Based on an AD 774–775 Radiocarbon Spike
The so-called Millennium Eruption of Baitoushan Volcano is one of the largest of the Common Era but its date has been uncertain. Recently, Oppenheimer et al. (2017) reported the eruptive year as late AD 946 using a new method called carbon-14 spike matching. However, it is necessary to verify their result to confirm the eruptive year, since only one wood sample was used in their study. We verified the eruptive year by measuring 14 C contents in t…
Search for Annual 14 C Excursions in the Past
Two radiocarbon excursions (AD 774–775 and AD 993–994) occurred due to an increase of incoming cosmic rays on a short timescale. The most plausible cause of these events is considered to be extreme solar proton events (SPE). It is possible that there are other annual 14 C excursions in the past that have yet to be confirmed. In order to detect more of these events, we measured the 14 C contents in bristlecone pine tree-ring samples during the per…
Supernovae and Single-Year Anomalies in the Atmospheric Radiocarbon Record
Single-year spikes in radiocarbon production are caused by intense bursts of radiation from space. Supernovae emit both high-energy particle and electromagnetic radiation, but it is the latter that is most likely to strike the atmosphere all at once and cause a surge in 14 C production. In the 1990s, it was claimed that the supernova in 1006 CE produced exactly this effect. With the 14 C spikes in the years 775 and 994 CE now attributed to extrem…
High-precision age determination of Holocene samples by radiocarbon dating with accelerator mass spectrometry at Nagoya University
Verification of the Cosmic-Ray Event in AD 993–994 by Using a Japanese Hinoki Tree
A rapid yearly increase in the radiocarbon content has been detected for the period from AD 993 to 994. However, this event is supported by the 14 C measurements of only one cedar tree sample, and verification is necessary to confirm this event more reliably. For this purpose, this study measured the 14 C content in Japanese Hinoki tree rings corresponding to the period from AD 988 to 997 using the accelerator mass spectrometry system at Yamagata…
Radiocarbon Ages of Annual Rings from Japanese Wood
To investigate the radiocarbon concentration of atmospheric CO 2 over the past few millennia in Japan, we measured the 14 C age of annual rings from 3 Japanese trees with calendar dates ranging from ∼2000 yr old to present, and we compared the tree-ring 14 C age with the corresponding 14 C age from IntCal09. In some instances, the 14 C ages of the annual rings of Japanese trees are not consistent with the IntCal09 data sets. Often, the 14 C ages …
A signature of cosmic-ray increase in ad 774–775 from tree rings in Japan
The IntCal20 Northern Hemisphere Radiocarbon Age Calibration Curve (0–55 cal kBP)
Radiocarbon ( 14 C) ages cannot provide absolutely dated chronologies for archaeological or paleoenvironmental studies directly but must be converted to calendar age equivalents using a calibration curve compensating for fluctuations in atmospheric 14 C concentration. Although calibration curves are constructed from independently dated archives, they invariably require revision as new data become available and our understanding of the Earth syste…
More Rapid 14 C Excursions in the Tree-Ring Record
Two radiocarbon ( 14 C) excursions are caused by an increase of incoming cosmic rays on a short time scale found in the Late Holocene (AD 774–775 and AD 993–994), which are widely explained as due to extreme solar proton events (SPE). In addition, a larger event has also been reported at 5480 BC (Miyake et al. 2017a), which is attributed to a special mode of a grand solar minimum, as well as another at 660 BC (Park et al. 2017). Clearly, other ev…
Verification of the Cosmic-Ray Event in AD 993–994 by Using a Japanese Hinoki Tree
A rapid yearly increase in the radiocarbon content has been detected for the period from AD 993 to 994. However, this event is supported by the 14 C measurements of only one cedar tree sample, and verification is necessary to confirm this event more reliably. For this purpose, this study measured the 14 C content in Japanese Hinoki tree rings corresponding to the period from AD 988 to 997 using the accelerator mass spectrometry system at Yamagata…
Radiocarbon Ages of Annual Rings from Japanese Wood
To investigate the radiocarbon concentration of atmospheric CO 2 over the past few millennia in Japan, we measured the 14 C age of annual rings from 3 Japanese trees with calendar dates ranging from ∼2000 yr old to present, and we compared the tree-ring 14 C age with the corresponding 14 C age from IntCal09. In some instances, the 14 C ages of the annual rings of Japanese trees are not consistent with the IntCal09 data sets. Often, the 14 C ages …
Verification of the Annual Dating of the 10th Century Baitoushan Volcano Eruption Based on an AD 774–775 Radiocarbon Spike
The so-called Millennium Eruption of Baitoushan Volcano is one of the largest of the Common Era but its date has been uncertain. Recently, Oppenheimer et al. (2017) reported the eruptive year as late AD 946 using a new method called carbon-14 spike matching. However, it is necessary to verify their result to confirm the eruptive year, since only one wood sample was used in their study. We verified the eruptive year by measuring 14 C contents in t…
Supernovae and Single-Year Anomalies in the Atmospheric Radiocarbon Record
Single-year spikes in radiocarbon production are caused by intense bursts of radiation from space. Supernovae emit both high-energy particle and electromagnetic radiation, but it is the latter that is most likely to strike the atmosphere all at once and cause a surge in 14 C production. In the 1990s, it was claimed that the supernova in 1006 CE produced exactly this effect. With the 14 C spikes in the years 775 and 994 CE now attributed to extrem…
Search for Annual 14 C Excursions in the Past
Two radiocarbon excursions (AD 774–775 and AD 993–994) occurred due to an increase of incoming cosmic rays on a short timescale. The most plausible cause of these events is considered to be extreme solar proton events (SPE). It is possible that there are other annual 14 C excursions in the past that have yet to be confirmed. In order to detect more of these events, we measured the 14 C contents in bristlecone pine tree-ring samples during the per…
Two New Millennium-Long Tree-Ring Oxygen Isotope Chronologies (2349–1009 Bce and 1412–466 Bce) From Japan
We present two new millennium-long tree-ring oxygen isotope chronologies for central and northern Japan, based on 9693 annually resolved measurements of tree-ring oxygen isotopes from 39 unearthed samples consisting mainly of Japanese cedar ( Cryptomeria japonica ). These chronologies were developed through cross-dating of tree-ring widths and δ 18 O data from multiple samples covering the periods 2349–1009 BCE (1341 yr) and 1412–466 BCE (947 yr)…
A signature of cosmic-ray increase in ad 774–775 from tree rings in Japan
Radiocarbon Ages of Annual Rings from Japanese Wood
To investigate the radiocarbon concentration of atmospheric CO 2 over the past few millennia in Japan, we measured the 14 C age of annual rings from 3 Japanese trees with calendar dates ranging from ∼2000 yr old to present, and we compared the tree-ring 14 C age with the corresponding 14 C age from IntCal09. In some instances, the 14 C ages of the annual rings of Japanese trees are not consistent with the IntCal09 data sets. Often, the 14 C ages …
Verification of the Cosmic-Ray Event in AD 993–994 by Using a Japanese Hinoki Tree
A rapid yearly increase in the radiocarbon content has been detected for the period from AD 993 to 994. However, this event is supported by the 14 C measurements of only one cedar tree sample, and verification is necessary to confirm this event more reliably. For this purpose, this study measured the 14 C content in Japanese Hinoki tree rings corresponding to the period from AD 988 to 997 using the accelerator mass spectrometry system at Yamagata…
High-precision age determination of Holocene samples by radiocarbon dating with accelerator mass spectrometry at Nagoya University
Search for Annual 14 C Excursions in the Past
Two radiocarbon excursions (AD 774–775 and AD 993–994) occurred due to an increase of incoming cosmic rays on a short timescale. The most plausible cause of these events is considered to be extreme solar proton events (SPE). It is possible that there are other annual 14 C excursions in the past that have yet to be confirmed. In order to detect more of these events, we measured the 14 C contents in bristlecone pine tree-ring samples during the per…
Supernovae and Single-Year Anomalies in the Atmospheric Radiocarbon Record
Single-year spikes in radiocarbon production are caused by intense bursts of radiation from space. Supernovae emit both high-energy particle and electromagnetic radiation, but it is the latter that is most likely to strike the atmosphere all at once and cause a surge in 14 C production. In the 1990s, it was claimed that the supernova in 1006 CE produced exactly this effect. With the 14 C spikes in the years 775 and 994 CE now attributed to extrem…
More Rapid 14 C Excursions in the Tree-Ring Record
Two radiocarbon ( 14 C) excursions are caused by an increase of incoming cosmic rays on a short time scale found in the Late Holocene (AD 774–775 and AD 993–994), which are widely explained as due to extreme solar proton events (SPE). In addition, a larger event has also been reported at 5480 BC (Miyake et al. 2017a), which is attributed to a special mode of a grand solar minimum, as well as another at 660 BC (Park et al. 2017). Clearly, other ev…
Verification of the Annual Dating of the 10th Century Baitoushan Volcano Eruption Based on an AD 774–775 Radiocarbon Spike
The so-called Millennium Eruption of Baitoushan Volcano is one of the largest of the Common Era but its date has been uncertain. Recently, Oppenheimer et al. (2017) reported the eruptive year as late AD 946 using a new method called carbon-14 spike matching. However, it is necessary to verify their result to confirm the eruptive year, since only one wood sample was used in their study. We verified the eruptive year by measuring 14 C contents in t…
The IntCal20 Northern Hemisphere Radiocarbon Age Calibration Curve (0–55 cal kBP)
Radiocarbon ( 14 C) ages cannot provide absolutely dated chronologies for archaeological or paleoenvironmental studies directly but must be converted to calendar age equivalents using a calibration curve compensating for fluctuations in atmospheric 14 C concentration. Although calibration curves are constructed from independently dated archives, they invariably require revision as new data become available and our understanding of the Earth syste…
A Wiggle-Matched 297-Yr Tree-Ring Oxygen Isotope Record From Thailand
Regional offsets from Northern Hemisphere radiocarbon ( 14 C) calibration curves are widely recognized for monsoon Asia and often hinder accurate 14 C dating. In this paper, we explore the possible linkage between summer monsoon intensity and 14 C offsets using tree-ring δ 18 O and 14 C data from Thailand. We developed a 297-yr floating tree-ring δ 18 O chronology comprising seven teak log-coffin samples from the Ban Rai rock shelter site, northw…
Two New Millennium-Long Tree-Ring Oxygen Isotope Chronologies (2349–1009 Bce and 1412–466 Bce) From Japan
We present two new millennium-long tree-ring oxygen isotope chronologies for central and northern Japan, based on 9693 annually resolved measurements of tree-ring oxygen isotopes from 39 unearthed samples consisting mainly of Japanese cedar ( Cryptomeria japonica ). These chronologies were developed through cross-dating of tree-ring widths and δ 18 O data from multiple samples covering the periods 2349–1009 BCE (1341 yr) and 1412–466 BCE (947 yr)…
Geology and Paleoclimatology Research (10 works) · Radiocarbon dating (10 works) · Geology (9 works) · Paleontology (9 works) · Geography (8 works) · Archaeology and ancient environmental studies (7 works) · Dendrochronology (7 works) · Physical geography (7 works) · Physics (6 works) · Cosmic ray (5 works)