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TECTONIC MINDSET. “Phanerozoic lithosphere motions are well documented by paleomagnetic recordings of plate-tectonic sundering of supercontinent Pangea and complex dispersion and assembly of major fragments to present-day configurations during the last 600 m.y.” https://www.sciencedirect.com/science/article/pii/S0012825219302636?via=ihub View in LinkedIn

THE PERSISTENT MYTH. “Precambrian paleomagnetism? Evidence often cited for a permanent liquid core and ancient plate tectonics comes from paleomagnetic interpretations that may be in error.” https://www.sciencedirect.com/science/article/pii/S0012825219302636?via=ihub View in LinkedIn

MAGNETIC SHIELD THESIS. “The Cambrian explosion of evolution produced almost all phyla of modern animals within about 50 m.y., possibly because the newly-formed strong dipolar magnetic field provided a shield against ionized radiation.” https://www.sciencedirect.com/science/article/pii/S0012825219302636?via=ihub View in LinkedIn

WARREN’S EPITAPH. “It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to fit facts.” Sherlock Holmes to Dr. Watson, in A Scandal in Bohemia (A.C. Doyle, 1891). https://www.sciencedirect.com/science/article/pii/S0012825219302636?via=ihub View in LinkedIn

WITH THE HELP OF FRIENDS. “Warren passed away leaving behind a manuscript of more than 39,000 words, which he judged to be 95 percent complete—with “all the hard parts” done. Colleagues, friends, and family have picked up this legacy and carried it the last steps. The great man’s final paper will be published posthumously in 2019.” https://lnkd.in/dNVjJKA9 View in LinkedIn

RACE AGAINST TIME. “His 2015 paper was the last published before Warren’s death, but it did not mark the end of his writing. Over the next three years and into his final month, he worked toward an even broader synthesis that would represent a culmination of his career: “Toward a myth-free geodynamic history of Earth and its neighbors.” He knew this project was a race against time, but refused to take shortcuts in the painstaking work. Time won that race, just barely.” https://lnkd.in/dNVjJKA9 View in LinkedIn

EPIC HERETICAL GEOLOGY PAPER. “Toward a myth-free geodynamic history of Earth and its neighbors”, by Warren B. Hamilton, is truly a tour de force, a heretical, sweeping and important paper covering a lifetime of geological work. https://lnkd.in/d9NUnzUC View in LinkedIn

WARREN HAMILTON. “Warren B. Hamilton, PhD, Geology, is Distinguished Senior Scientist, Department of Geophysics, Colorado School of Mines. For 43 years he worked at the U.S. Geological Survey. He was an author in over 100 refereed articles from the 1950s to the present, and in 1989 he received the Penrose Medal, the Geological Society of America's highest award.” https://lnkd.in/d8kyQ4xj View in LinkedIn

ONE SAMPLED DATA SOURCE. “Testing, which I do not attempt, is desirable to confirm or reject that hypothesis. Purported Archean paleomagnetic data are so sparse in time and space, the dating of remnant magnetization so ambiguous and orientations so scattered, as to presently add little to the debate. There are, however, many hundreds of purported determinations of magnetic orientations of Proterozoic rocks.” https://www.sciencedirect.com/science/article/pii/S0012825219302636?via=ihub View in LinkedIn

MAGNETIC SHIELDING AND CAMBRIAN EXPLOSION. “The Phanerozoic has been the era of plate tectonics. Lithosphere motions documented by paleomagnetism suggest Earth’s dipole magnetic field may have developed at ~600 Ma. The Cambrian explosion in which most modern phyla evolved may have required its shielding against radiation.” https://lnkd.in/d8AxQ-kU View in LinkedIn