Ross N. Mitchell
= Ross N. Mitchell
{c}
<Ross N. Mitchell> studies ancient continental configurations using <paleomagnetism> and the geological record of <supercontinents>. In a 2011 paper with <David A. D. Evans>, he combined dated magnetic-pole records with tectonic and stratigraphic correlations to reconstruct the core of <Nuna>. The reconstruction fitted the <Siberian craton>, <Laurentia> and <Baltica> together for an interval roughly 1.9–1.3 billion years ago and tested that fit against the histories of their margins.<Assembly and breakup of the core of Paleoproterozoic-Mesoproterozoic supercontinent Nuna by David A. D. Evans and Ross N. Mitchell>[Abstract and Figure 1, pp. 443–444: quantitative reconstruction and independent geological correlations]{ref}
This is a comparison between several kinds of evidence. Matching <apparent polar wander paths> constrains relative continental motion, while dated evidence of <mountain building> and continental-margin histories test whether the proposed neighbors experienced compatible events. Divergence between those records can indicate assembly or separation. The paper presents a particular reconstruction to be tested against further observations; its detailed fit is not implied merely by naming a <supercontinent>.
A researcher in <paleomagnetism> and <supercontinent> histories. Institutional profile: https://igg.cas.cn/sourcedb_igg_cas/cn/zjrck/yjy/201912/t20191219_5460988.htm
\Image[https://igg.cas.cn/sourcedb_igg_cas/cn/zjrck/yjy/201912/W020260519577797167505.jpg]
{title=Ross N. Mitchell, portrait linked from his Chinese Academy of Sciences institutional profile}
{width=220}