准格尔煤田的成煤植物群落及其环境变迁

准格尔地区自晚奥陶世抬升以来,经过1亿多年的风化剥蚀,到晚石炭世复又下沉。海水时侵时退,为植物的繁衍与发展创造了条件,并生成巨厚煤层。成煤植物从早到晚分为欧美、华夏植物群过渡类型、华夏植物群早期类型和华夏植物群繁盛期类型,伴随着植物的发展与演替,环境也发生着相应的变化。     

着力突出煤炭彰显地方特色——读《井陉矿区志》

在河北省区志培训暨研讨会议上,笔者得到一部刚刚出版还散发着油墨香气的《井陉矿区志》。与已出版的第二轮志书相比,这部志书有许多不同的地方。它不是续志,而是井陉矿区贯通古今的第一部通志;它不是一部煤矿志,而是一部综合性的行政区域志。《井陉矿区志》给读者最深印象,是在记述地情的基础上,着力突出煤炭、彰显地方特色。     

Rosalind Franklin's work on coal,carbon, and graphite

Abstract

Rosalind Franklin's earliest research involved studies of coal, carbon, and graphite. She made a number of enduring contributions in these areas, most notably identifying the fundamental distinction between graphitising and non-graphitising carbons. Her work on carbon also provided a valuable background for her later biological work.     

日伪时期淮南煤矿的经营管理(1938-1945)

淮南煤矿是国民政府建设委员会创建的官办煤矿.日军侵占淮南煤矿,目的在于掠夺淮南煤炭资源,为其侵华战争服务.为此,日本帝国主义采用高度垄断的方式和掠夺式的开采方法经营管理淮南煤矿,使日伪时期淮南煤矿的经营管理具有垄断性、掠夺性和残酷性特征.     

A new Palaeolithic discovery: tar-hafted stone tools in a European Mid-Pleistocene bone-bearing bed

Two stone flakes partly covered in birch-bark-tar and a third without tar on it were discovered in fluvial gravel and clay in central Italy, in association with the bones of a young adult female Elephas (Palaeoloxondon) antiquus and several micromammals. The probable chronology of the stone flakes is compatible with the late Middle Pleistocene suggested by the site's small mammals and geological context. The fauna indicates a cool stadial episode before isotope stage 6. That age means the flakes are the oldest ever found hafted with tar and indicate a greater capacity for late Middle Pleistocene hominins to utilize raw materials available during cold phases.     

高掺粉煤灰水泥的生产和应用

古交地区有矸石煤坑口电厂三座,总装机300万千瓦,年排放粉煤灰400余万吨。生产高掺量粉煤灰水泥是减少粉煤灰污染提高水泥厂效益的有效途径。2010年,我们在山西-煤气化集团水泥粉磨站进行了高掺粉煤灰水泥的试验,生产高掺量粉煤灰水泥5万吨,吃干灰2万吨,试验的成功对全市推广商掺粉煤灰水泥极具示范意义。     

东北地区古代火炕初探

本文通过整理考古发现的火炕遗迹,并与文献相结合来探讨火炕形制的演变、建筑材料的变化、功用以及起源等几个问题,阐明作为北方古代居民御寒的主要取暖设施--火炕的演变规律.     

Hydrochemical characterization of a coal mine plume detected by an airborne geophysical survey

A trial airborne electromagnetic (AEM) geophysical survey was carried out across a 13 × 9 km area of the northern Nottinghamshire (UK) coalfield. One of the objectives was to examine the influence of coal mines (collieries) and associated spoil heaps situated above the Triassic Sherwood Sandstone aquifer. The conductivity models obtained from the AEM survey revealed extensive zones of enhanced subsurface conductivity in the vicinity of all the collieries in the survey area. The present study provides information regarding subsequent investigations (ground geophysics and borehole) to confirm the AEM results and to investigate the geochemical nature of the conductive zone identified in the vicinity of one of the collieries.Following ground geophysical confirmation of the airborne results, three boreholes were drilled into one of the conductive zones to the east of a working colliery. Geophysical logs and analysis of pore fluid geochemistry demonstrate that there is a very strong correlation between the borehole induction logs (formation conductivity), total dissolved solids (TDS) and chloride in the pore waters. The three cored boreholes have confirmed that there is a groundwater plume with high concentrations of TDS, compared with background, moving east from the Thoresby Colliery on a hydraulic gradient of 0.023. Porewater geochemistry obtained from core has been compared with that of local aquifer waters and with samples obtained from the colliery. The results indicate that the plume chemistry could result from the mixing of a typical Sherwood Sandstone composition with colliery spoil leachate. The AEM conductivity models have been successfully correlated with ground geophysical models, borehole induction logs, TDS and chloride in the pore waters. By implication, the geophysical results obtained over a larger area indicate the wider extent of such impacts in relation to both former and current mining activities.     

Archaeological and chemical evidence for the earliest American use of raw coal as a fuel in ironmaking

The archaeological discovery of bituminous coal in the tipple area and the subsequent analyses of specimens of the iron ore, charcoal, limestone, slag, and cast iron from the Eaton (Hopewell) blast furnace built in 1802 indicate that raw coal was used in combination with charcoal as a fuel in American iron smelting at least thirty years before it was used alone. Further, its use in this combinatory manner marks the earliest as yet attested to in the New World.     

铁路与1912～1937年间的豫北工矿业发展

民国初期,铁路在华北兴起并形成网络之后,加速了华北内陆与沿海通商口岸经贸交流的进程,推动了内陆经济由传统向现代的转型。由此,豫北的工矿业发生了极富时代特色的变动。由于自然经济依然存在,这一转变过程表现出很强的多样性和复杂性。因此,通过对豫北近代工矿业发展的具体考察,揭示了华北内陆区域经济由传统向现代演变的主要特征及一般规律。     

Industrial reorganisation and coal production in Australia, 1860–1982: an historical materialist analysis

From an historical materialist perspective, the essential quality of industrial change is that it is the product of conflict resident both in the relationship of struggle between capital and labour over the accumulation of surplus value and in the competitive relations between individual capitals over the appropriation of profits. This article is essentially methodological in that it identifies the specific competitive and conflictual determinants of profitability internal to an industry and the external influences of the wider economy which contribute to that industry's ‘relative’ profitability vis a vis investment capital. It argues that the emerging pattern of economic change is structured by a tendency towards crisis and declining profitability. The history of black coal production in Australia is examined in the light of this method and emerging theory of industrial reorganisation.     

Why wealthy countries must not drop nuclear energy: coal power,climate change and the fate of the global poor

Current estimates indicate that several hundred thousand deaths per year can be attributed to climate change. Developed countries have reacted to this growing disaster by increasing the use of renewable energies, but what is to be done with the additional electricity thus generated? Should it be used for cutting back coal‐fired energy production or can it be used for substituting nuclear energy? Priority must be given to replacing coal power, since developed countries have a strong duty to minimize the physical harm caused by their electricity generation. Dropping nuclear energy prior to coal power cannot be justified because the risks of nuclear energy pale in comparison to the suffering that emissions from coal‐fired plants inflict both on their host countries and on poorer countries in the global South that (a) do not benefit from this energy and (b) have far less capacity to cope with the effects of climate change or other environmental damages. This article argues that when faced with a choice between operating coal‐fired power plants or nuclear reactors, governments are obliged to opt for nuclear energy.     

Re‐equilibration of fluid inclusions in diagenetic‐anchizonal rocks of the Ciñera‐Matallana coal basin (NW Spain)

Thermally re‐equilibrated fluid inclusions are reported in natural fissure quartz (qtz1) from polymineralic veins in the diagenetic‐anchizonal clastic sedimentary rocks of the Ciñera‐Matallana coal basin (Variscan, NW Spain). Euhedral quartz formed during early fissure opening from an immiscible fluid mixture composed of a low salinity aqueous solution and a CH₄‐rich vapour phase, at temperatures of about 110–120°C and pressures ranging from 15 to 56 MPa. Five textural types of re‐equilibration are recognised in progressive order of inclusion modification: scalloped, hairy, annular‐ring shaped, haloes and decrepitation clusters. These textures resulted from a combination of brittle fracturing and dissolution and re‐precipitation of quartz, with preferential loss of water. The thermal peak was short‐lived, but was high enough to induce extensive decrepitation of fluid inclusions in vein quartz throughout the entire basin. Enhanced temperatures can be related to the intrusion of diorites in the basin. Careful analysis of textural features in fluid inclusions from diagenetic and very low‐grade metamorphism environments constitutes a useful tool for recording basin thermal history.