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SO ENDS this first of two weekends considering Warren Hamilton’s magnetic shield hypothesis of the Cambrian explosion. It is a contribution to tectonics and fossil record ablation that together might start to add up. This period remains one if biology’s most unconvincing stories and has certainly been influenced by cherry-picking geological data. https://www.sciencedirect.com/science/article/pii/S0012825219302636?via=ihub View in LinkedIn

THE HYPOTHESIS. “This is because purported Precambrian magnetic poles in that region apparently record Phanerozoic magnetization of Precambrian rocks. Earth's strong dipolar internally generated magnetic field may have originated only about 600 m.y. ago.” https://www.sciencedirect.com/science/article/pii/S0012825219302636?via=ihub View in LinkedIn

POSSIBLE SALVAGE. “Phanerozoic remagnetization of Precambrian rocks? The study of the large paleomagnetic database for Precambrian and Phanerozoic rocks of Europe east of Britain and the Carpathians by Bazhenov et al. (2016) provides a possible avenue for solving the conflicts.” https://www.sciencedirect.com/science/article/pii/S0012825219302636?via=ihub View in LinkedIn

NEVER FORGET THIS. “Another major drawback of the Standard Model is the fact that it uses two predominant components, dark matter and dark energy, supposed to represent about 95% of the universe energy density, but which have remarkably resisted to experimental identification so far.” https://lnkd.in/daA2SgMy View in LinkedIn

GROUP THINK OF THE ERA. “These are only a few examples of the many that exist. Possibly relevant is the observation that all of these aggregates share similar features and so there may have been little or no dispersal or aggregation until latest Proterozoic time (Meert, 2014).” https://www.sciencedirect.com/science/article/pii/S0012825219302636?via=ihub View in LinkedIn

DARK ENERGY. “And it is only at the age of a few billion years that the Dark Energy component, a name hiding our ignorance of its true nature, becomes dominant, leading to a universe of accelerated expansion, where galaxies will find themselves isolated from each other in a (relatively) near future.” https://lnkd.in/daA2SgMy View in LinkedIn

PREVAILING DOGMA. “Piper (2018) illustrated a little-varying Proterozoic supercontinent (Fig. 32b) whose core aggregate was fixed in Proterozoic latitude (which is incompatible with the geodetic expectation that the spin equator be parallel, not perpendicular, to megacontinent/megaocean dichotomy boundary) until it sundered when modern plate tectonics began in the very late Proterozoic.” https://www.sciencedirect.com/science/article/pii/S0012825219302636?via=ihub View in LinkedIn

Artist’s rendering if 16 Psyche asteroid’s rusty surface." " https://lnkd.in/dTXustpB View in LinkedIn

PLATE ASSUMPTIONS. “Some investigators infer intricate aggregations and sunderings much more chaotic than modern plate behavior of hypothetical supercontinents Columbia and Rodinia (Fig. 32a) found little change from 1000 to 750 m.y. ago but rationalized that plate activity occurred during that era without differential motions.” https://www.sciencedirect.com/science/article/pii/S0012825219302636?via=ihub View in LinkedIn

The incomparable Surrealist, Dorothea Tanning. " " https://lnkd.in/dmvdu9hP View in LinkedIn