TITLE:
Periodic Signals of the Milky Way Concealed in Terrestrial Sedimentary Basin Fills and in Planetary Magmatism?
AUTHORS:
Heinz-Jürgen Brink
KEYWORDS:
Milky Way, Spiral Arms, Planets, Sea Level, Magmatism, Climate Change
JOURNAL NAME:
International Journal of Geosciences,
Vol.6 No.8,
August
7,
2015
ABSTRACT: Long periodic geodynamic
processes with durations between 150 and 600 Million years appear to be in
phase with similar galactic cycles, caused by the path of the solar system
through the spiral arms of the Milky Way. This path is assumed by some authors
to cause climate change due to cosmic ray fluctuations, affecting the cloud
formation and the related albedo of the Earth, which periodically lead to glaciations
every 150 Ma. With the glaciations, the sea level fluctuates accordingly.
Subsequently, the varying sizes of shallow seas are causing periodic changes of
the Moon’stidal dissipation,
which affects presumably other geodynamic processes on the Earth. The Moonmay therefore synchronize directly or
indirectly long periodic Phanerozoic cycles (sea level, orogeny, magmatism,
sedimentation, etc.) with the Milky Way. As sea level fluctuations, orogeny,
sedimentation and magmatism can be described as members of a geodynamic
feedback system; no apparent reasons appear to be required to assign a cause of
the cyclicity to agents outside of thegalactic-climatically
synchronized Earth-Moon system. However, recent observations of youngvolcanism on the near Earth
terrestrial planets may require a new understanding. Magmatic/volcanic episodes
on Venus, Mars and Mercury as well as on the Earth’s Moon are apparently
contemporaneous thermal events accompanying increased magmatic/volcanic
activities on theEarth,following a 300 myr cycle. Therefore,
a collateral galactic thermal source within the Milky Wayappears to be needed that only affects
the interior of the planets without any recognizable directeffect on life and geology on the
Earth. The search for such a source may lead to astrophysicalquestions, related to a spiral arm
affected distribution of dark energy, dark matter or even specificneutrino sources. However, all
possible astrophysical answers are outside of the author’s competence.