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Topics related to "subsoil"

hardpan
hardpan condition of the soil or subsoil in which the soil grains become cemented together by such bonding agents as iron oxide and calcium carbonate, forming a hard, impervious mass. It is disadvantageous to farming, interfering with the circulation of moisture in the soil and with the growth of r... Read more
tundra
tundra , treeless plains of N North America and N Eurasia, lying principally along the Arctic Circle, on the coasts and islands of the Arctic Ocean, and to the north of the coniferous forest belt. The tundra area is widest in N Siberia on the Kara Sea and reaches as far south as 60° N at the nec... Read more
permafrost
permafrost permanently frozen soil, subsoil, or other deposit, characteristic of arctic and some subarctic regions; similar conditions are also found at very high altitudes in mountain ranges. In 1962 measurements in a borehole drilled on Melville Island, Northwest Territories, Canada, showed that ... Read more
Mexico
Mexico or Mexico City, Span. Ciudad de México ( Méjico ), city (1990 pop. 8,236,960; 1991 met. area est. 20,899,000), central Mexico, capital and largest city of Mexico. The Modern City Mexico City forms the core of the Federal District and is the commercial, industria... Read more
property
property rights to the enjoyment of things of economic value, whether the enjoyment is exclusive or shared, present or prospective. The rightful possession of such rights is called ownership. Ownership necessarily is supported by correlative rights to exclude others from enjoyment. By extension o... Read more
Yucatán
Yucatán , peninsula, c.70,000 sq mi (181,300 sq km), mostly in SE Mexico, separating the Caribbean Sea from the Gulf of Mexico. It comprises the states of Yucatán , Campeche , and Quintana Roo , Mexico; the country of Belize ; and part of Petén , Guatemala. Mérida ,... Read more

Encyclopedia entries related to "subsoil"

hardpan
Book article from: The Columbia Encyclopedia, Sixth Edition condition of the soil or subsoil in which the soil grains become cemented together by such bonding agents...filling of the air spaces in the soil with fine particles of clay, the subsoil is called a clay pan. This usually occurs in acid soil. Read more
Seabed Arms Control Treaty of 1971
Encyclopedia entry from: West's Encyclopedia of American Law ...1971 The Seabed Arms Control Treaty of 1971 was an agreement for the denuclearization of the seabed, the ocean floor, and the subsoil of the seabed. It may be regarded as a nuclear nonproliferation treaty since it limits or prevents the spread of nuclear devices... Read more
permafrost
Book article from: The Columbia Encyclopedia, Sixth Edition permanently frozen soil, subsoil, or other deposit, characteristic of arctic and some subarctic regions; similar conditions are also found at very high altitudes... Read more
tundra
Book article from: World Encyclopedia tundra Treeless, level, or gently undulating plain characteristic of arctic and subarctic regions. It is marshy with dark soil that supports mosses, lichens, and low shrubs. It has a permanently frozen subsoil known as permafrost . Read more
McAdam, John Loudoun
Book article from: The Oxford Companion to British History ...1798–1814, making the observations that formed his ‘principles’: employing small stones direct onto the subsoil as the method of making effective roads largely impermeable to water. These were presented to the House of Commons in 1811... Read more
rice
Book article from: World Encyclopedia ...Far East countries. Rice is a staple diet for half the world's population. It is an annual grass; the seed and husk is the edible portion. It usually grows in flooded, terraced paddies with hard subsoil to prevent seepage. Species Oryza sativa. Read more
Mexico
Book article from: The Columbia Encyclopedia, Sixth Edition ...the surface crust, formerly supported by subsoil water, can no longer sustain the city...pilings. In addition to being built on soft subsoil, the city is located in a region of high...colonial architecture remain in spite of subsoil and seismic threats. The cathedral and... Read more
Territorial Waters
Encyclopedia entry from: West's Encyclopedia of American Law ...navigation, exploitation of resources, and other lawful uses. The legal status of territorial waters also extends to the seabed and subsoil under them and to the airspace above them. From the eighteenth to the middle of the twentieth century, international law set... Read more
property
Book article from: The Columbia Encyclopedia, Sixth Edition ...fact, much or most land in capitalist societies is in private hands, although public lands may be extensive and ownership of subsoil mineral wealth or of buried objects (see treasure-trove ) may in some instances be public. (See also public ownership .) Development... Read more
deserts
Book article from: The Oxford Companion to the Earth ...sodium chloride, calcium carbonate, and calcium sulphate) accumulate in desert soils, forming calcic and gypsic horizons in the subsoil. Insolation weathering and salt weathering dominate processes of rock breakdown. On a regional scale, lack of water gives rise... Read more

Dictionary entries related to "subsoil"

subsoil
Book article from: The Concise Oxford Dictionary of English Etymology subsoil XVIII. f. SUB- + SOIL1 . Read more
oxic horizon
Book article from: A Dictionary of Earth Sciences oxic horizon Mineral subsoil soil horizon that is at least 30 cm thick and is identified by the almost complete...exchangeable bases, and by low cation-exchange capacity . It is the distinguishing subsoil horizon (B horizon) of an Oxisol . Read more
fragipan
Book article from: A Dictionary of Earth Sciences fragipan Subsoil horizon , found deep in a soil profile and having a high bulk density. It is a dense, brittle, and compact layer, apparently with little or no cementation horizon, associated with acid soil conditions. Read more
permafrost
Book article from: The Concise Oxford Dictionary of English Etymology permafrost permanently frozen subsoil. XX. f. next, FROST . Read more
pan
Book article from: A Dictionary of Plant Sciences pan A soil horizon , usually in the subsoil, that is strongly compacted, indurated (see INDURATION ), cemented, or very high in clay content. Read more
tundra
Book article from: A Dictionary of Biology tundra A terrestrial biome characterized by a lack of trees and a permanently frozen subsoil. Tundra lies to the north of the taiga in North America and Eurasia; the vegetation is dominated by grasses, sedges, lichens, mosses... Read more
magnetic gradiometry
Book article from: A Dictionary of Earth Sciences magnetic gradiometry A geophysical technique, sometimes used in archaeology, that measures the magnetic properties of subsoil materials. Read more
Ilanos
Book article from: A Dictionary of Plant Sciences ...grasslands of the Orinoco basin of Venezuela. Some authorities have suggested that the paucity of trees is due to the heavy subsoil of the region, which produces very wet conditions during the rainy season. It is more likely, however, that fire and grazing... Read more
llanos
Book article from: A Dictionary of Ecology ...grasslands of the Orinoco basin of Venezuela. Some authorities have suggested that the paucity of trees is owing to the impermeable subsoil of the region, which produces very wet conditions during the rainy season. It is likely, however, that fire and grazing are... Read more
electrical tomography
Book article from: A Dictionary of Earth Sciences ...used in archaeology, in which metal electrodes are inserted into the ground and a current passed between them, through the subsoil. The resistivity is measured and many such measurements, taken at different depths and in different directions, allow a three-dimension... Read more

Thesaurus entries related to "subsoil"

penetrable
Book article from: The Oxford American Writers Thesaurus penetrable • adjective   1. a penetrable subsoil synonyms : permeable, pervious, porous.   2. books that are barely penetrable to anyone under 50 synonyms : understandable, fathomable, comprehensible, intelligible. Read more

Related newspaper, magazine, and trade journal articles from HighBeam Research

Accounting for Subsoil Mineral Resources.(Statistical Data Included)
Magazine article from: Survey of Current Business; 2/1/2000; 700+ words ; ...reviews BEA's development of a set of subsoil mineral accounts. This article is reprinted...Edward C. Kokkenlenberg. INTRODUCTION SUBSOIL. minerals--particularly petroleum, natural...values of and changes in the stocks of subsoil assets are currently omitted from the... Read more
The role of roots in soil building (or, let's root for roots).(decayed roots provide organic material to subsoils)(Brief Article)
Magazine article from: Countryside & Small Stock Journal; 9/1/1999; ; 454 words ; ...foliage (drawn up by the roots from the subsoil), into the existing topsoil. The amount...actually provide organic material to the subsoils. This can be seen in a new cut in a fertile...which will, in turn, be darker than the subsoils below this level. It is also the process... Read more
Third review conference on operation of Sea-Bed Treaty adopts Final Declaration. (Treaty on the Prohibition of the Emplacement of Nuclear Weapons and Other Weapons of Mass Destruction on the Sea-Bed and the Ocean Floor and in the Subsoil Thereof)
Magazine article from: UN Chronicle; 12/1/1989; 542 words ; ...prevent an arms race on the sea-bed, the ocean floor and the subsoil thereof . The appeal was made by States parties to the 1972...Mass Destruction on the Sea-Bed and the Ocean Floor and in the Subsoil Thereof, as it is formally known, entered into force on 18... Read more
Breaking up is hard to do. (subsoil layers)
Magazine article from: Agricultural Research; 1/1/1994; ; 621 words ; ...plagues about 33 million acres of U.S. soil and large areas in other countries: how to permeate and break up dense, concretelike subsoil layers that are barriers to plant roots and farm machinery. Called fragipans, the layers also impede water movement. Once the... Read more
Wide sleepers perform well in comparative tests: Pfleiderer has studied the performance of six designs of concrete sleeper and their effect on the ballast and subsoil in connection with train speed and axleload. The main conclusion is that the greater the contact area of the sleeper the less damage is caused to the ballast.(Track)
Magazine article from: International Railway Journal; 5/1/2004; ; 700+ words ; ...use the relatively highly-elastic Ioarv 300-1 rail fastening. The B01 sleeper has a large contact area but a comparatively hard rail fastening, with the result that load distribution is not optimal. The greatest stress applied to the subsoil is Read more
Rehabbing subgrade with track in place: rehabilitation of sections of track with subsoil problems is absolutely essential, and doing it without removing the track provides big cost savings.
Magazine article from: Railway Track and Structures; 5/1/2005; 700+ words ; In several European countries special on-track machines are used for rehabilitation of the track subgrade. The formation protective layers, which have to meet very stringent specifications, are installed without removing the track. The machines are particularly costefficient in operation, as they Read more
Secrets of the Deep.
Magazine article from: UN Chronicle; 12/22/1999; ; 700+ words ; ...community: To whom do the ocean floor and its subsoil belong? He opened a Pandora's box that...the Seabed and the Ocean Floor, and the Subsoil. Thereof, beyond the Limits of National...resource. If the crude oil existing in the subsoil is considered an economic input when a... Read more
RUSSIA: GOVERNMENT ADOPTS RESOURCE-DEVELOPMENT BILL.(Brief Article)
Newspaper article from: IPR Strategic Business Information Database; 3/20/2005; 210 words ; The cabinet on 17 March approved a draft bill on the exploitation of subsoil natural resources, which will now be forwarded to the State Duma, Russian and international media reported. Although the new bill... Read more
Topsoil Is Alive: Keep It Fresh.
Magazine article from: Agricultural Research; 2/1/1999; ; 418 words ; ...after moving into a newly built home, a yard full of sterile subsoil is a poor substitute for healthy topsoil when it comes to growing...Topsoil brims with worms, microorganisms, and organic matter. Subsoil -- material from below the topsoil -- usually spells subpar... Read more
Status of Russian petroleum legislation.
Magazine article from: Houston Journal of International Law; 3/22/2008; ; 700+ words ; I. INTRODUCTION II. THE JOINT VENTURE LAW III. THE LAW ON OIL AND GAS IV. THE LAW ON PRODUCTION SHARING AGREEMENTS V. THE SUBSOIL LAW VI. CONCLUSION I. INTRODUCTION The Author's first exposure to the laws of the Soviet Union and Russia took the form of... Read more