As is well known, a great number of Kieslager are distributed in the Sambagawa metamorphic zone. However, it should be noted that some are situated in the Shimanto zone as well as in the marginal zone of the Kitakami-mountain land both of which are thought to be late Mesozoic (mainly, Cretaceous) metallogenetic provinces of the Outer Zone of Honshu.
In this paper, the geologic and tectonic features of these provinces are reviewed and additional remarks are made on some genetic problems.

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Barite and anhydrite have been found in some cupriferous iron sulfide deposits, in which they were previously considered rare.
Occurrence, optical properties and chemical composition of barite from the Hisagi ore-deposits of the Yanahara Mine are described. It is noteworthy that granular aggregates of barite are found, associated with calcite, only in the massive pyrite ore-bodies. Similar occurrences of barite are also present in other cupriferous iron sulfide deposits in Japan.
A small amount of anhydrite was found in the massive pyrite ores and country rocks of the Sazare Mine, Shikoku. It is also accompanied by calcite and both the anhydrite and calcite have granular textures.
Thus barite and anhydrite may be expected in similar cupriferous pyrite deposits in Japan.

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The limonite depsits of the Chokai-Shunomata Mine, in the Chokai volcano area, are located about 28km south of Yashima City, Akita Prefecture, Japan.
The area is covered by lavas of Chokai valcano.
The deposits are of bedded type precipitated from cold ferruginous spring water.
Microscopic observation shows that the ores are formed mainly of goethite-and jarosite-like minerals which cover the inner walls of cavities in the ores.
Such elements as Al, Si, K, Ti, and P have been detected in the ores by spectrographic methods.
Phosphorus content of the ores is about 0.5-2.0 per cent, which is considerably higher than that of ordinary limonitic ores of Japan.
The limonitic bed of this mine may be classified into the following three zones:
1: zone of high phosporus content (more than 1.4%P)
2: zone of intermediate phosphorus content (14-1.0%P)
3: zone of low phosphorus content (less than 1.0%P)
As noted in Fig.5, showing the distribution of phosphorus in the limonite deposits, lateral changes of ore characteristics are marked.
The distribution of the three zones mentioned above, are shown in figs. 6 and 7.
In general, the zones of both high and low content are limited in distribution. whereas that of intermediate phosphorus content is more extensive in the ore bed down stream as compared to upstream.

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The Komaki Mine is one of the pheumatolytic to hypothermal tungsten and molybdenum deposits which have been found to contain radioactive minerals, and is situated about 44km south of Matsue City, Shimane Prefecture.
In this mine, the ore deposits are found in marginal facies of fine-to medium-grained biotite granite. They are irregular string-or chimney-like domes of tungsten-molybdenum quartz veins. Cross sections of the chimneys are circular or elliptical in form and from one to several meters in diameter. The largest chimney is about seventy or more meters in length and has several ramifying branches at many places.
The main ore minerals are wolframite, sheelite and molybdenite, together with broggerite, magnetite, chalcopyrite, pyrrhotite and pyrite.
The "greisen" halo, extending about 0.3 meter from the chimney, has the mineral assemblage: muscovite, quartz, garnet, topaz, potash-feldspar, plagioclase, axinite, biotite, fluorite, apatite and zircon.
In the dressing mill, the tungsten ore has been separated by the Wilfley Table and (the remnants of them mined about twenty years? ago has been found to be highly radioactive.) Uraninite-mineral has been gathered from the tungsten concentrates by means of both Magnetic and Isodynamic Separaters, and the Super Panner.
The uraninite was identified by the powder methods of X-ray diffrection analysis, and its cell dimension was measured: a0=5.48₁ Å. It was also clarified that the mineral contains about fourteen percent ThO₂, by fluorescence X-ray analysis. It is therefore, thought to be bröggerite.
Bröggerite, which has an intimate paragenetic relation to the main ore minerals occurs in the marginal part of the chimney. The grain size of the mineral is up to 1mm in diameter.
Note : () ? "talings of ores mined about 20 years ago have been found to be highly radioactive"

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