CORUNDUM OF PING SHAN DISTRICT, W. CHIHLI.

I. GEOLOGY AND TOPOGRAPHY OF THE CORUNDUM DISTRTOT. The corundum is found in Ping Shan Hsien (平山縣) which is located in the south-western part of Chihli. It connects with Chin Hsing     

A STUDY OF THE SILURIAN SECTION AT LO JO PING, I CHANG DISTRICT, W. HUPEH

Through the studies of Richthofen in Szechuan and Kiangsu, Deprat and Munsuy in Eastern Yunnan, and Brown & Read in Western Yunnan, the Silurian rock of South China has been known to be of wide occurrence. The classic region, however, is found in the district of Kiao Tchang Pa     

GEOLOGY OF NORTHERN CHIHLI AND EASTERN MONGOLIA.

During the last spring (April-May 1924), we have, F. Licent and I crossed the Northern Chihli and the eastern part of the Inner Mongolia.     

会理县小青山铜金矿区硅质钠长石岩研究

岩石空间产出特征、岩相学、岩石化学、稀土元素地球化学特征及成岩成矿作用特征等分析研究表明,硅质钠长石岩是经沉积变质、硅质钠质交代作用形成的,原岩组成多样,主要为碳质板岩,其次为条带状泥砂质白云岩,局部也可以是辉绿辉长岩。     

GEOLOGY OF NORTHERN CHIHLI AND EASTERN MONGOLIA.

During the last spring (April-May 1924), we have, F. Licent and I crossed the Northern Chihli and the eastern part of the Inner Mongolia.     

湖南省耒阳市白山坪煤矿岩溶裂隙水水害治理

因采动白垩系红层压覆下的煤层,从而破坏了白垩系底砾岩岩溶裂隙水的动态平衡,导致白山坪矿白采动前的矿井南翼水量50m^3／h,突增至3700m。／h（1996～1997年）,造成矿井6次穿水,2次淹井严重后果。1997年采用帷幕注浆治理,并经近10年运行及多次洪水考验,目前矿井南翼矿井涌水量稳定在150m^3／h之内,一般120m^3／h。帷幕注浆治理矿井水害获得巨大成功。     

THE ORDOVIOIAN GRAPTOLITE BEDS OF PING LIANG, E. KANSU

The physiographic features in the Ping Liang (平涼) area are composed of two parts, the mountain on the south and the loess plateau spreading northward to a great extent.     

PROCEEDINGS OF THE SPECIAL MEETING ON DECEMBER 28TH. 1929 IN THE LIBRARY OF THE GEOLOGICAL SURVEY,9, PING MA SSU, W. PEIPING

The Special Meeting is called for announcing the result of the recent excavation of the Chou Kou Tien cave, Dr. W. H. Wong director of the National Geological Survey presiding. Dr. Wong in opening the meeting, first referred to the irreparable loss to geological science is the death of Mr.     

PROCEEDINGS OF THE SPECIAL MEETING ON SEPTEMBER 25th, 1930 IN THE LIBRARY OF THE GEOLOGICAL SURVEY, 9, PING MA SSU, W. PEIPING.

A special meeting was called for the purpose to welcome Prof. G. Elliot Smith on Wednesday afternoon at 4 P. M. in the Library of Geological Survey by the Vice-President, Prof. Y. C. Sun. Prof. Sun first introduced Prof. Smith to the members of the Society saying that Prof. Smith is an ex-pre-     

大别山榴辉岩（牌楼）P－T－t轨迹

本文重点研究了大别山潜山，牌楼地区榴辉岩Ｐ－Ｔ－ｔ轨迹，探讨了大别山地区榴辉岩成因，认为榴辉岩原岩主要是碱性玄武岩，少部分洋脊拉斑玄武岩岩浆早期结晶分异堆晶岩及部分钙质沉积岩。它们在华北与杨子板块碰撞时（２６０±３０Ｍａ），地壳向下俯冲到４０－６０ｋｍ处，温度５５０°－８３０°Ｃ，压力１．１－２．１ＧＰａ的条件下形成的。在构造抬升过程中，榴辉岩产生了角闪岩相、绿片岩相退变质作用，角闪岩相温压条件：４６０°－５７０℃，０．４－０．７ＧＰａ。流体包裹体研究表明：流体包体成分主要为ＮａＣｌ－Ｈ＿２Ｏ，Ｈ＿２Ｏ，ＮａＣｌ－ＣＯ＿２－Ｈ＿２Ｏ体系，变质作用过程从早至晚由氧化向还原环境转化。熔融包体的发现表明：榴辉岩形成具有局部深熔作用。从榴辉岩产状、岩石化学、地球化学特征表明本地区榴辉岩不是一种成因，同时具有Ｂ类、Ｃ类榴辉岩特征。     

刚玉宝石矿物

文章简介丁刚玉族宝石矿物的化学成分、物理性质及产状;描述了红宝石、蓝宝石、粉蓝宝石、黄蓝宝石、绿蓝宝石、无色蓝宝石和星光宝石的特征、真伪鉴别方法及市场行情。     

山东五莲七宝山式金矿——一个与火山机构岩浆演化有关的金铜矿床

本文在研究七宝山金镇矿床基础上,系统总结了该矿床火山机构的岩浆演化及隐爆角砾岩筒的特征,并由此建立了一种严格受隐爆角砾岩筒控制、且极为富钨的特殊类型的斑岩型金铜矿床成矿模式。     

W地区储层孔隙度地震预测技术及应用研究

在W地区,储层孔隙度预测技术是将支持向量机方法与分频法相结合构成一种新的地震非线性预测技术.支持向量机是一种基于统计理论的新型机器学习算法,它是建立输入与输出的一个隐形的映射关系,在我们的问题中,应用测井数据作为支持向量机的输入向量,通过支持向量机优选参数,对实际样本数据构造核函数,实现全局最优解.分频法采用短时快速傅利叶变换(SFFT)将地震数据进行时频转换,形成高分辨的分频数据体,作为独立的输入数据体,以提高储层孔隙度反演的分辨率和精度.因此,构成的这种联合预测技术,充分发挥了支持向量机和分频法的优势,这种全新的储层孔隙度预测技术适应储层地质参数高维非线性特点.依据建立的储层孔隙孔隙度预测技术,利用W地区实际地震数据形成的分频数据体和测井数据,对朱海组储层孔隙度进行了预测,获得了高分辨率和高精度储层孔隙度剖面和储层孔隙度数据体.在W地区,预测的朱海组储层孔隙度与测井孔隙度具有良好的一致性,其相关系数值为(0.816～0.945),平均值为0.882,因此,预测的储层孔隙度具有较高的可信度和准确率.在W地区成功应用表明,其方法技术具有通用性和较好的推广性,它的适用面广,预测效果好,易于实现,它将油气储层孔隙度预测推向一个新的发展水平.     

ON A NEW GENUS OF SYRINGOPOROID CORAL FROM THE CARBONIFEROUS OF CHIHLI AND FENGTIEN PROVINCES.

In the course of my study on the Chihsia Corals from Central China, Mr. Y. T. Chao my collegue of the Geological Survey was so kind as to hand over to me two specimens of tube corals which he personally found in a limes-     

变质岩区金易释放率资源量预测模型研究—以山海关地区为例

资源量预测中体积估计法和丰度估计法有着明显的不足，主要是在计算公式中都用到元素Ａｕ的区域丰度值，但金在岩石中分为易释放金和惰性金两部分，只有易释放金才能参与成矿。因此，本文试图通过Ｐｄ－Ａｕ的特殊关系，探求金的易释放率，建立金的易释放率－资源量关系式，进而建立金的易释放率资源量预测模型。     

安徽大别山北部红刚玉岩石的成因

大别山北部红刚玉矿产在太古代大别山群黑云角门外长片麻岩以及超基性岩中。赋存红刚玉的刚玉黑云二长片麻岩的原始岩石为富铝泥质岩,在角门岩相变质条件下,通过两种脱硅方式,即变质分异作用和超基性岩侵位,形成刚玉黑云二长片麻岩。它们形成的温压条件：Ｔ＝５００℃～７００℃,Ｐ＝０．４～０．７ＧＰａ。刚玉形成的可能的化学机制是白云母在缺硅条件下的分解。     

ON A NEW GENUS OF SYRINGOPOROID CORAL FROM THE CARBONIFEROUS OF CHIHLI AND FENGTIEN PROVINCES.

In the course of my study on the Chihsia Corals from Central China, Mr. Y. T. Chao my collegue of the Geological Survey was so kind as to hand over to me two specimens of tube corals which he personally found in a limes-     

GEOLOGY OF TANG SHAN & ITS VICINITY, NANKING

WITH 4 PLATES AND 4 FIGURES Tang Shan, or as it is sometimes called Nan Tan Shah, is situated abou 60 li W. of Nanking. On the N. E. slope of the mountain is located the town Tan Shui Chen, in which a great number of hot springs are found. An automobile road connecting Tan Shan with Nanking has been recently built and it takes