Annual report of the United States Geological Survey to the Secretary of the Interior . over-lies the others, and there can be no doubt of the continuity of thesedimentation through the whole series of liguitic and marine stratain this locality. Fossil wood, referred to Pinus pannonicus, has been obtained atDelaroff Harbor, in the southern part of Unga, and some large pieces,collected on the beaches and forwarded to Dr. Newberry in 1873, werestated to be apparently cycadaceous. These may have been derivedfrom adjacent Mesozoic strata. According to John Dix, a miner at thecoal vein referred to,
Annual report of the United States Geological Survey to the Secretary of the Interior . over-lies the others, and there can be no doubt of the continuity of thesedimentation through the whole series of liguitic and marine stratain this locality. Fossil wood, referred to Pinus pannonicus, has been obtained atDelaroff Harbor, in the southern part of Unga, and some large pieces,collected on the beaches and forwarded to Dr. Newberry in 1873, werestated to be apparently cycadaceous. These may have been derivedfrom adjacent Mesozoic strata. According to John Dix, a miner at thecoal vein referred to, the mountains inland from the bay consist largelyof similar sandstones. The northeastern extremity of Unga Island and the northwesternpart of Popoff Island are composed of sandstones and conglomeratessimilar to the upper part of the bluff in Zacharoft Bay, but they riseto only about 50 to 75 feet above the sea, and are broken and cut bydikes and larger intrusions of basaltic lava and diorite, and near the con-tacts are much altered and intersected by veins of chalcedonic quartz. 11.
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