[ Top ] [ Japanese ]

Yokota intrusion

Invalid synonym: Yokota Granite, Ueyama Granite

A part Tottori Granite

• Plutonic rocks
• Paleocene (59.6 Ma, Rb-Sr)
• Correlation: Hiyodori Granite
• Intruded by: Neu Granite, Rhyolite dikes
• Intruded in: Ushiroyama Body, Misawa Body

• Lithofacies: I-type magnetite series
• Lithofacies: Biotite granite (including alkaline feldspar)
• Lithofacies (Minor): Granite porphyry dikes, Granite dikes

• Distribution (Length): ca. 30 km
• Distribution (Width): ca. 3 - 8 km
• South: Transitional (Abire intrusion)

------ Transitional, ~~~~~~ Intrusive, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Matsue city - Izumo city, Shimane pref.; Ichihara - Komaki - Yokota, Okuizumo city, Nita county, Shimane pref.; Yairigawa river - Ueyama, Unnan city, Shimane pref.; Shimoabire, Nichinan city, Hino county, Tottori pref.

• Nishida (2013) Jour. Geol. Soc. Japan, vol.119, no.4, pp.229-248 DOI
• Iwata et al. (2013) Jour. Geol. Soc. Japan, vol.119, no.3, pp.190-204 DOI
• Matsuura et al. (2005) Geology of the Kisuki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 72p. (in Japanese with English abstract 5p.)