Abstract

Although irrefutable evidence for the presence of signs of diamondiferous kimberlite on the Taimyr Peninsula were obtained in the 1930s, it was only in 2020 that a macrodiamond (>1 mm) was first discovered in Eastern Taimyr. This was a colorless laminar crystal of a transitional shape from an octahedron to a rhombododecahedron. According to the set of features, the crystal is rare and atypical of the known primary and alluvial deposits of the Siberian Diamond Province. The find of this diamond indicates the presence of primary sources and the need for medium-scale geological survey and exploration over a large area from Anabar Bay (Pronchishchev Ridge) to the west to the Kiryaka–Tas and Tulai–Kiryaka highlands and to the northeast to Tsvetkov Cape.

中文翻译：

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Taimyr 钻石潜力的预测

摘要

尽管在 1930 年代获得了泰米尔半岛存在含金刚石金伯利岩迹象的无可辩驳的证据，但直到 2020 年才在泰米尔东部首次发现大金刚石（>1 毫米）。这是一种从八面体到菱十二面体的过渡形状的无色层状晶体。根据这组特征，该晶体在西伯利亚钻石省已知的原生和冲积矿床中非常罕见且非典型。这颗钻石的发现表明，从阿纳巴尔湾 (Pronchishchev Ridge) 到西到 Kiryaka-Tas 和 Tulai-Kiryaka 高地以及东北部的大面积区域内存在主要来源，并且需要进行中等规模的地质调查和勘探到茨维特科夫角。