Full Vector Studies of the Pringle Falls Excursion Recorded at Pringle Falls, Oregon
俄勒冈州普林格尔瀑布记录的普林格尔瀑布游览的完整矢量研究
基本信息
- 批准号:1215070
- 负责人:
- 金额:$ 10.82万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2012
- 资助国家:美国
- 起止时间:2012-07-01 至 2015-06-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The main objective of this proposal is to investigate the relative paleointensity of the lake sediments that recorded the Pringle Falls excursion (ca. 218+/-1o ka) at the original site of Pringle Falls along the Deschutes River in Oregon. Paleomagnetic directions (i.e. Declination and Inclination) as well as the relative paleointensity (i.e. Full Vector) from the Pringle Falls sediments will provide information on the spatial and temporal variability of the Earth's geomagnetic field for the well documented aborted reversal at Pringle Falls which duration is of few hundred years. Due to the fact that there is a real need to obtain detailed records from high-resolution sediments (i.e. high sedimentation rates, at least 10cm/year) in order to have a better understanding of the generation of the field, we propose to study in detail five sections sampled along the Deschutes River with the main objective of understanding the directional behavior as well as the geomagnetic field strength (i.e. relative paleointensity of the sections) recorded before during and after the Pringle Falls excursion in Oregon.The objectives of this proposed study are primarily related to the knowledge of the paleofield variations during periods like reversals and excursions, and the critical time intervals that precede and follow the high resolution (i.e. at least 10 cm/year of sedimentation rates) Pringle Falls excursion (recorded in Oregon) that so far have only been documented from a few sedimentary sequences particularly between 30 to 220 thousand years of the geomagnetic history. Reversal and excursion studies cannot be separated from the surrounding polarity intervals and most records published so far were not long enough to provide complete information. The lacustrine sediments along the Deschutes River sections offer the first exceptional opportunity to document field changes over a time period thatincludes a polarity episode that lasted a few hundred to, at most, several thousand years, and thus document the field behavior over various time constants. The results of the rock magnetic tests/experiments performed on pilot samples indicate that the sediments in question are suitable for the relative paleointensity studies proposed here. The magnetic results of this proposed research will contribute to the understanding of the structure in the core of the Earth, the core-mantle and the inner and outer core boundaries as well as the related causes of the generation of the Earth's magnetic field.
这项建议的主要目的是调查记录普林格尔福尔斯漂移的湖泊沉积物的相对古强度(约1000年)。在俄勒冈州德舒特河沿岸的普林格尔福尔斯沿着的原始地点。来自普林格尔福尔斯沉积物的古地磁方向(即,倾角和倾角)以及相对古强度(即,全矢量)将提供关于地球地磁场的空间和时间变化的信息,用于在普林格尔福尔斯进行的有据可查的中止反转,其持续时间为几百年。由于真实的需要从高分辨率沉积物中获得详细的记录(即高沉降率,至少10厘米/年),以便更好地了解该领域的产生,我们建议对沿着德舒特河沿着取样的五个断面进行详细研究,主要目的是了解方向行为和地磁场强度(即剖面的相对古强度)在俄勒冈州普林格尔福尔斯漂移之前、期间和之后记录。这项拟议研究的目的主要是了解在反转和漂移等时期的古场变化,以及在高分辨率之前和之后的关键时间间隔(即,至少10 cm/年的沉积速率)普林格尔福尔斯漂移(记录在俄勒冈州),迄今为止仅从少数沉积序列中记录,特别是在地磁历史的3万至22万年之间。返回和偏移研究不能与周围的极性间隔分开,迄今为止发表的大多数记录都不够长,无法提供完整的信息。湖相沉积物沿着德舒特河部分提供了第一个特殊的机会,记录字段的变化,在一个时间段,其中包括一个极性插曲,持续了几百年,最多,几千年,从而记录字段的行为在不同的时间常数。岩石磁性测试/实验的结果进行试点样品表明,沉积物的问题是适合的相对古强度研究在这里提出的。这一研究结果将有助于了解地球的核心结构,核幔和内外核边界以及地球磁场产生的相关原因。
项目成果
期刊论文数量(0)
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科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Emilio Herrero-Bervera其他文献
Non-axisymmetric behaviour of Olduvai and Jaramillo polarity transitions recorded in north-central Pacific deep-sea sediments
在北太平洋中部深海沉积物中记录的奥杜瓦伊和加拉米洛极性转换的非轴对称行为
- DOI:
10.1038/322159a0 - 发表时间:
1986-07-10 - 期刊:
- 影响因子:48.500
- 作者:
Emilio Herrero-Bervera;Fritz Theyer - 通讯作者:
Fritz Theyer
A Magnetic and Geochemical Approach to the Changing Sedimentation Patterns in Response to Glacio-eustatic Changes at the Great Barrier Reef
大堡礁冰川海平面变化引起的沉积模式变化的磁和地球化学方法
- DOI:
- 发表时间:
2022 - 期刊:
- 影响因子:0
- 作者:
Muhammad Bin Hassan;Gabriel Tagliaro;Brandon B Harper;Andre Willy Droxler;Emilio Herrero-Bervera;Yusuke Yokoyama;Angel Puga Bernab_u Sr.;Jody Webster;Luigi Jovane - 通讯作者:
Luigi Jovane
Tectonics of southwestern Mexico, isotopic evidence, nuclear Central America, Late Cretaceous break up
- DOI:
10.1007/s11200-010-0024-8 - 发表时间:
2010-09-25 - 期刊:
- 影响因子:0.800
- 作者:
Jose C. Guerrero Garcia;Emilio Herrero-Bervera - 通讯作者:
Emilio Herrero-Bervera
Reversal records from Eastern Icelandic lava flows and their geodynamic significance
- DOI:
10.1007/bf01908679 - 发表时间:
1996-03-01 - 期刊:
- 影响因子:7.100
- 作者:
Emilio Herrero-Bervera;George P. L. Walker;Christopher G. A. Harrison;Jose C. Guerrero Garcia - 通讯作者:
Jose C. Guerrero Garcia
Emilio Herrero-Bervera的其他文献
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{{ truncateString('Emilio Herrero-Bervera', 18)}}的其他基金
Full vector paleosecular variation (PSV) recorded on the Koolau Volcano, Oahu, Hawaii during the Matuyama Chron at Makapuu Point (ca. 2.6 to ~2.2 Ma).
夏威夷欧胡岛库劳火山在马卡普点松山纪元期间(约 2.6 至约 2.2 Ma)记录的全矢量古世变 (PSV)。
- 批准号:
1620594 - 财政年份:2016
- 资助金额:
$ 10.82万 - 项目类别:
Standard Grant
Magnetostratigraphy and Polarity transitions studies of lavas of the island of Lanai, Hawaii
夏威夷拉奈岛熔岩的磁性地层学和极性转变研究
- 批准号:
1114065 - 财政年份:2011
- 资助金额:
$ 10.82万 - 项目类别:
Standard Grant
Upgrade of the Paleomagnetics and Petrofabrics Laboratory of the University of Hawaii at Manoa
夏威夷大学马诺阿分校古地磁学和石油结构实验室升级
- 批准号:
1005255 - 财政年份:2011
- 资助金额:
$ 10.82万 - 项目类别:
Standard Grant
Full Vector Studies of the Last 60 Thousand Years Derived From the East Maui Volcano, Hawaii
对夏威夷东毛伊岛火山过去 6 万年的完整矢量研究
- 批准号:
1015329 - 财政年份:2010
- 资助金额:
$ 10.82万 - 项目类别:
Standard Grant
Upgrade of the Petrofabrics and Paleomagnetics Laboratory of the University of Hawaii
夏威夷大学石化与古地磁实验室升级
- 批准号:
0710571 - 财政年份:2008
- 资助金额:
$ 10.82万 - 项目类别:
Standard Grant
Collaborative Research: Magnetic Ocean Crust: High-Fidelity Geomagnetic Field Recorder and Sensitive Indicator of Magmatic, Tectonic, and Alteration Processes
合作研究:磁性洋壳:高保真地磁场记录仪和岩浆、构造和蚀变过程的敏感指示器
- 批准号:
0727764 - 财政年份:2007
- 资助金额:
$ 10.82万 - 项目类别:
Standard Grant
Full Vector Studies of Polarity Transitions and Excursions Recorded in Long Sequences in the Koolau Volcano, O'ahu, Hawai'i.
夏威夷欧胡岛库劳火山长序列记录的极性转变和偏移的全矢量研究。
- 批准号:
0510061 - 财政年份:2005
- 资助金额:
$ 10.82万 - 项目类别:
Continuing Grant
Absolute Paleointensities From the Gilbert-Gauss to the Upper Mammoth Reversal Sequences in Lavas on the Wai'anae Volcano, Hawaii
夏威夷怀阿奈火山熔岩中从吉尔伯特-高斯到上猛犸象反转序列的绝对古强度
- 批准号:
0207787 - 财政年份:2002
- 资助金额:
$ 10.82万 - 项目类别:
Continuing Grant
Acquisition of Equipment for Measuring Magnetic Properties of Rocks
购置岩石磁特性测量设备
- 批准号:
0213441 - 财政年份:2002
- 资助金额:
$ 10.82万 - 项目类别:
Standard Grant
Polarity Transistion Studies in the Wai'anae Volcano: From the Gilbert-Gauss to the Upper Kaena Reversals
怀阿奈火山的极性转变研究:从吉尔伯特-高斯到上卡埃纳反转
- 批准号:
9909206 - 财政年份:2000
- 资助金额:
$ 10.82万 - 项目类别:
Standard Grant
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