The Izu Peninsula, central Japan, is situated in a zone where the active intra-oceanic Izu Bonin arc has been colliding end-on with the mainland Honshu arc for the past 15 million years.
The Tevatron has been colliding beams of protons and their opposites, antiprotons, that have been accelerated to energies of one trillion electron volts, for more than two decades looking for new forces and particles.
In terms of plate tectonics, this knot marks the northeastern limit of the encroaching Indian-Australian Plate, which has been colliding with the southern edge of the Eurasian Plate for roughly the past 50 million years and thrusting up the mountain ranges of Myanmar and beyond.
The lead in that quest currently belongs to the Tevatron, until last year the world's largest accelerator, which has been colliding protons and antiprotons with energies of a trillion electron volts for the last two decades at the Fermi National Accelerator Laboratory in Batavia, Ill., piling up data.
This volcanic arc has been colliding with the Honshu arc, forming the Izu arc arc collision zone in central Japan (e.g., Aoike 1999).
The Tanzawa Mountains are located in the Izu-Honshu collision zone, where the Izu Bonin arc on the Philippine Sea (PHS) plate has been colliding into Honshu island on the Eurasian plate.
The Izu-Bonin arc (IBA) has been colliding with the Honshu arc since the middle Miocene, which together form the active Izu arc-arc collision zone (ICZ) in central Japan.
The Izu volcanic ridge on the PHS Plate, which formed in an intraoceanic setting, has been colliding with central Japan at the western margin of the Kanto district since 15 Ma (e.g., Soh et al. 1998).
The Tanzawa Mountains in Japan is located in the Izu-Honshu collision zone, where the Izu-Bonin arc on the Philippine Sea plate has been colliding with Honshu Island on the Okhotsk and Amur plates (Fig. 1; Arai and Iwasaki 2014, 2015).
Up until now, the world's highest-energy particle accelerator - which is run by the European Organization for Nuclear Research (Cern) - has been colliding protons, in a bid to uncover mysteries of the Universe's formation.
Old and new have been colliding at the Bolshoi since the late 1980s, when upstart dancers rose up against the longtime artistic director, Yuri Grigorovich, and the rigid Soviet classicism he represented.
