{"title":"The problem of diamondbearing in Syria","authors":"S. Hanna","doi":"10.29173/ikc1840","DOIUrl":"https://doi.org/10.29173/ikc1840","url":null,"abstract":"","PeriodicalId":273773,"journal":{"name":"International Kimberlite Conference Extended Abstracts: 1995","volume":"25 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125672890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The correlation of kimberlite activity with mantle metasomatism","authors":"J. Konzett, R. Sweeney, W. Compston","doi":"10.29173/ikc1864","DOIUrl":"https://doi.org/10.29173/ikc1864","url":null,"abstract":"","PeriodicalId":273773,"journal":{"name":"International Kimberlite Conference Extended Abstracts: 1995","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125213023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1995-09-19DOI: 10.1016/S0016-7037(99)00211-2
P. Deines, S. Haggerty
{"title":"Petrochemistry of ultradeep (>300 km) and transition zone xenoliths","authors":"P. Deines, S. Haggerty","doi":"10.1016/S0016-7037(99)00211-2","DOIUrl":"https://doi.org/10.1016/S0016-7037(99)00211-2","url":null,"abstract":"","PeriodicalId":273773,"journal":{"name":"International Kimberlite Conference Extended Abstracts: 1995","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121412255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Diamondiferous kimberlites are typically located in stable, cratonic (Archean) regions of the earth (Clifford’s Rule). This is reflected in the Nitrogen-aggregation characteristics of the diamonds1. Recently discovered kimberlites at Fort a la Come (FALC)3'5, near Prince Albert, Saskatchewan, and Sloan6, in northern Colorado Fig. 1), show some Proterozoic N-aggregation characteristics. These features are attributed to a Proterozoic continent-continent collision, leading to crustal and lithospheric thickening, and a subsequent period of diamond growth. Heavy minerals have been separated from 320kg of FALC kimberlites (as part of the Operation Fish Scale2 investigating core from FALC), including garnets, micro and macrodiamonds. All the diamonds (30) have been analysed for their N-aggregation state, plus three for carbon isotope values (D. Mattey in ref2). Garnets (105 grains) have been commercially analysed with proton-probe Ni-thermobarometry (W.L. Griffin in ref2). Evidence from seismic reflection east-west profiling (LITHOPROBE at 55°N and COCORP at 49°N) confirms that the Trans-Hudson orogen (THO) is a broadly anticlinal structure7'9. The central region, called the Glennie Domain (GD), comprises tectonically emplaced (aged 1.83-1.79 Ga) arc volcanics and arc sediments bordered by foreland shelf sediments associated with the Heame/Wyoming craton in the west and Superior craton to the east. The entire THO is tectonised by transpressional structures, including thrusts and strike-slip faults, some of which extend into the lower crust. Broad tectonic structures indicate a collision of the GD from the NW
含金刚石的金伯利岩通常位于地球稳定的克拉通(太古代)地区(克利福德规则)。这反映在金刚石的氮聚集特性上1。最近在科罗拉多州北部阿尔伯特王子、萨斯喀彻温省和Sloan6附近的Fort a la Come (FALC)3'5发现的金伯利岩(图1)显示出一些元古代n聚集特征。这些特征归因于元古代大陆与大陆的碰撞，导致地壳和岩石圈增厚，以及随后的钻石生长时期。重矿物已从320公斤的FALC金伯利岩中分离出来(作为“鱼鳞行动2”调查FALC岩心的一部分)，包括石榴石、微钻石和大钻石。所有的钻石(30颗)都被分析了它们的n聚集态，另外3颗被分析了碳同位素值(D. Mattey，参考文献2)。石榴石(105粒)已经用质子探针镍热气压计进行了商业分析(W.L. Griffin, ref2)。地震反射东西向剖面(55°N的LITHOPROBE和49°N的COCORP)的证据证实，跨哈德逊造山带(THO)是一个广泛的背斜构造7’9。中部地区被称为Glennie域(GD)，由构造侵位(年龄1.83-1.79 Ga)的弧火山岩和弧沉积物组成，与西部的Heame/Wyoming克拉通和东部的Superior克拉通相关的前陆陆架沉积物接壤。整个东太平洋是由逆冲构造和走滑断层构成的，其中一些延伸到下地壳。广泛的构造构造表明GD从NW方向碰撞
{"title":"The influence of the deep structure of the Glennie Domain on the diamonds in Saskatchewan kimberlites","authors":"K. Leahy, W. Taylor","doi":"10.29173/ikc1876","DOIUrl":"https://doi.org/10.29173/ikc1876","url":null,"abstract":"Diamondiferous kimberlites are typically located in stable, cratonic (Archean) regions of the earth (Clifford’s Rule). This is reflected in the Nitrogen-aggregation characteristics of the diamonds1. Recently discovered kimberlites at Fort a la Come (FALC)3'5, near Prince Albert, Saskatchewan, and Sloan6, in northern Colorado Fig. 1), show some Proterozoic N-aggregation characteristics. These features are attributed to a Proterozoic continent-continent collision, leading to crustal and lithospheric thickening, and a subsequent period of diamond growth. Heavy minerals have been separated from 320kg of FALC kimberlites (as part of the Operation Fish Scale2 investigating core from FALC), including garnets, micro and macrodiamonds. All the diamonds (30) have been analysed for their N-aggregation state, plus three for carbon isotope values (D. Mattey in ref2). Garnets (105 grains) have been commercially analysed with proton-probe Ni-thermobarometry (W.L. Griffin in ref2). Evidence from seismic reflection east-west profiling (LITHOPROBE at 55°N and COCORP at 49°N) confirms that the Trans-Hudson orogen (THO) is a broadly anticlinal structure7'9. The central region, called the Glennie Domain (GD), comprises tectonically emplaced (aged 1.83-1.79 Ga) arc volcanics and arc sediments bordered by foreland shelf sediments associated with the Heame/Wyoming craton in the west and Superior craton to the east. The entire THO is tectonised by transpressional structures, including thrusts and strike-slip faults, some of which extend into the lower crust. Broad tectonic structures indicate a collision of the GD from the NW","PeriodicalId":273773,"journal":{"name":"International Kimberlite Conference Extended Abstracts: 1995","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131930283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Jha, Chris B. Smith, B. J. Griffin, B. Chatterjee, G. Pooley
{"title":"Diamonds from kimberlites of Southeastern Raipur kimberlite field, Raipur District, Madhya Pradesh, Central India","authors":"N. Jha, Chris B. Smith, B. J. Griffin, B. Chatterjee, G. Pooley","doi":"10.29173/ikc1856","DOIUrl":"https://doi.org/10.29173/ikc1856","url":null,"abstract":"","PeriodicalId":273773,"journal":{"name":"International Kimberlite Conference Extended Abstracts: 1995","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131226606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Occurrence and stability of diamondbearing assemblages in ultrahigh-pressure metamorphic rocks","authors":"J. Liou, Y. Ogasawara, R. Zhang","doi":"10.29173/ikc1881","DOIUrl":"https://doi.org/10.29173/ikc1881","url":null,"abstract":"","PeriodicalId":273773,"journal":{"name":"International Kimberlite Conference Extended Abstracts: 1995","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128451895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Geochemistry and evolution of the ultrabasic Blue Hills intrusive complex (Namibia)","authors":"S. Kurszlaukis, L. Franz, G. Brey, C. Smith","doi":"10.29173/ikc1874","DOIUrl":"https://doi.org/10.29173/ikc1874","url":null,"abstract":"","PeriodicalId":273773,"journal":{"name":"International Kimberlite Conference Extended Abstracts: 1995","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1995-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122605486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Diamond mining on kimberlite dikes of South Africa","authors":"","doi":"10.29173/ikc1861","DOIUrl":"https://doi.org/10.29173/ikc1861","url":null,"abstract":"","PeriodicalId":273773,"journal":{"name":"International Kimberlite Conference Extended Abstracts: 1995","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123230456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Klippen, A. I. Kruchkov, A. D. Kharkiv, V. V. Rogovoi
Vigorous dynamic activity of trap bodies was reported for the Alakit-Markha kimberlite field (Yakutia). This activity is illustrated by the displacement of the Lower and Upper Paleozoic blocks of sedimentary rocks and kimberlites, both horizontal and vertical. The amplitude of these displacements depends upon the morphology of trap bodies, their thickness, and is equal to 180 m and more (the full thickness of sill) vertically and several hundreds meter along strike.
{"title":"Dynamic effect of traps on kimberlites: identification of kimberlite klippen","authors":"Klippen, A. I. Kruchkov, A. D. Kharkiv, V. V. Rogovoi","doi":"10.29173/ikc1872","DOIUrl":"https://doi.org/10.29173/ikc1872","url":null,"abstract":"Vigorous dynamic activity of trap bodies was reported for the Alakit-Markha kimberlite field (Yakutia). This activity is illustrated by the displacement of the Lower and Upper Paleozoic blocks of sedimentary rocks and kimberlites, both horizontal and vertical. The amplitude of these displacements depends upon the morphology of trap bodies, their thickness, and is equal to 180 m and more (the full thickness of sill) vertically and several hundreds meter along strike.","PeriodicalId":273773,"journal":{"name":"International Kimberlite Conference Extended Abstracts: 1995","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122133206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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