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Category Archives: Geography
Charybdis and the Oldest Ocean Floor on Earth
A few years back there was a much ballyhooed drilling effort to find some 175 million year old sea floor touted as the “oldest”. Incorrecto qui mo sabe. That particular ocean floor is interesting in its own right (see our … Continue reading
Great Mysteries of Nature Nobody Seems to be Thinking About
This list will be changed from time to time and some mysteries will be developed into posts. In some sense they all speak to our lack of understanding of the magnetic and gravitational forces that bear down on us. 1. … Continue reading
Posted in Climate, Geography, Geology, Magnetic Reversals, Plate Tectonics
Tagged Bermuda, Bermuda Triangle, Geomagnetic reversal, Gravitation, Magnetism, North Pole, Proterozoic, South Pole
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Maybe we’re all Chasing Ice
A hopeless task of course. It will melt. Our planet has been ice free more often than not. We are really chasing something far more ephemeral; an ethic, a lost connection to the natural world, even a return to the … Continue reading
Posted in Carbon Theology, Climate, Climate Change, Geography, Geology, Global Warming
Tagged Chasing Ice;
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How Old is the Grand Canyon?
Controversies over wonders of the world capture the public imagination from time to time. Now some Caltech scientists have dared suggest from a new technique that measures the depth of overburden on apatite crystals that there was an older canyon … Continue reading
Gravity and Magnetism
This post follows the last two which were inspired by discovering that the virtual geomagnetic pole (VGP) wander path during the Laschamp reversal as revealed in Black Sea sediments by the work of Norbert R. Nowaczyk consistently follows lows in … Continue reading
Further Musing on the Affinity of Magnetic North for Gravity Holes During the Laschamp Reversal.
We know so little about what this means that it may be helpful to focus on what the gravity geoid is not. The earth is NOT shaped like a potato. Vertical exaggeration is used on nearly all maps to keep them … Continue reading
Simplified Path of Magnetic North During 41kya Reversal on Current Geoid
There was this really cool Hemholtz plot of the path of magnetic north during the last geomagnetic reversal from wander paths of sediments in the Black Sea. Had a sense that it was avoiding the geoid gravity high knob in Indonesia and decided … Continue reading
Terrane Terroir and What’s Up with this Purple Dirt Anyway?
As far as we can tell dinosaurs did not drink wine. Yet while the dinosaurs were leaving their bones in the mud farther east in Utah, the dirt that would become Hidden Ridge was being washed into the sea on … Continue reading
Posted in Biology, Geography, Geology, Paleogeography
Tagged Blood, Franciscan, Iron, San Andreas Fault, Terroir, Wine
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Where’s the pull?
I have this slab pull problem. It started when my brother (a geoscientist) alerted me to the latest tectonic trend. It seems those inclined to mathematically model the lithosphere are unable to find an equation to express the spreading at … Continue reading
A couple interesting papers
Sulfate Burial Constraints on the Phanerozoic Sulfur Cycle Halevy, et al. Science 20 July 2012: 331-334.DOI:10.1126/science.1220224 Rapid Variability of Seawater Chemistry Over the Past 130 Million Years Wortmann, et al. Science 20 July 2012: 334-336.DOI:10.1126/science.1220656 Sulfur has hit the radar. … Continue reading
Posted in Climate, Climate Change, Geography, Geology, Global Warming, History of Life, Oceanography, Paleoclimate, Paleogeography
Tagged Carbonic acid, David Keith, Eurasia, Himalayas, India, Phanerozoic, Sulfate, Weather
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