Timing of Quaternary geomagnetic reversals and excursions in volcanic and sedimentary archives
We review the ages of Quaternary magnetic polarity reversals and magnetic excursions.
Improvements in radioisotopic 40 Ar/39 Ar dating of reversals and excursions reflect the use …
Improvements in radioisotopic 40 Ar/39 Ar dating of reversals and excursions reflect the use …
A Quaternary geomagnetic instability time scale
BS Singer - Quaternary Geochronology, 2014 - Elsevier
Reversals and excursions of Earth's geomagnetic field create marker horizons that are
readily detected in sedimentary and volcanic rocks worldwide. An accurate and precise …
readily detected in sedimentary and volcanic rocks worldwide. An accurate and precise …
[PDF][PDF] 泥河湾盆地磁性地层定年与早期人类演化
朱日祥， 邓成龙， 潘永信 - 第四纪研究, 2007 - dsjyj.com.cn
摘要主要评述了近年来泥河湾盆地磁性地层学的研究进展, 包括建立泥河湾组的磁性地层年代格
架, 厘定泥河湾动物群的时代和确定华北地区早期人类活动年代序列. 研究表明: 第一 …
架, 厘定泥河湾动物群的时代和确定华北地区早期人类活动年代序列. 研究表明: 第一 …
Geologic map of the State of Hawaii
DR Sherrod, JM Sinton, SE Watkins, KM Brunt - 2021 - pubs.usgs.gov
Cover. True-color moderate resolution imaging spectroradiometer (MODIS) satellite image
05292003 showing the eight principal islands of the Hawaiian Island chain from May 21 …
05292003 showing the eight principal islands of the Hawaiian Island chain from May 21 …
Sex increases the efficacy of natural selection in experimental yeast populations
Why sex evolved and persists is a problem for evolutionary biology, because sex disrupts
favourable gene combinations and requires an expenditure of time and energy. Further, in …
favourable gene combinations and requires an expenditure of time and energy. Further, in …
New evidence on the earliest human presence at high northern latitudes in northeast Asia
RX Zhu, R Potts, F Xie, KA Hoffman, CL Deng, CD Shi… - nature, 2004 - nature.com
The timing of early human dispersal to Asia is a central issue in the study of human
evolution. Excavations in predominantly lacustrine sediments at Majuangou, Nihewan basin …
evolution. Excavations in predominantly lacustrine sediments at Majuangou, Nihewan basin …
Reconciling astrochronological and 40Ar/39Ar ages for the Matuyama‐Brunhes boundary and late Matuyama Chron
When five Matuyama‐Brunhes (M‐B) boundary records from the North Atlantic are placed
on isotope age models, produced by correlation of the δ18O record directly or indirectly to …
on isotope age models, produced by correlation of the δ18O record directly or indirectly to …
Modelling the recent common ancestry of all living humans
DLT Rohde, S Olson, JT Chang - Nature, 2004 - nature.com
If a common ancestor of all living humans is defined as an individual who is a genealogical
ancestor of all present-day people, the most recent common ancestor (MRCA) for a …
ancestor of all present-day people, the most recent common ancestor (MRCA) for a …
Orbital forcing of continental climate during the Pleistocene: a complete astronomically tuned climatic record from Lake Baikal, SE Siberia
AA Prokopenko, LA Hinnov, DF Williams… - Quaternary Science …, 2006 - Elsevier
A new composite BDP-96 biogenic silica record over the entire Pleistocene was generated
by splicing BDP-96-1 and BDP-96-2 drill cores from Lake Baikal, crosschecked against a …
by splicing BDP-96-1 and BDP-96-2 drill cores from Lake Baikal, crosschecked against a …
Geomagnetic excursions: knowns and unknowns
AP Roberts - Geophysical Research Letters, 2008 - Wiley Online Library
Geomagnetic excursions are short‐lived episodes when Earth's magnetic field deviates into
an intermediate polarity state. Understanding the origin, frequency, amplitude, duration, and …
an intermediate polarity state. Understanding the origin, frequency, amplitude, duration, and …