What's the difference between excavation and topsoiling?
Excavation
Definition:
(n.) The act of excavating, or of making hollow, by cutting, scooping, or digging out a part of a solid mass.
(n.) A cavity formed by cutting, digging, or scooping.
(n.) An uncovered cutting in the earth, in distinction from a covered cutting or tunnel.
(n.) The material dug out in making a channel or cavity.
Example Sentences:
(1) The only sign of life was excavators loading trees on to barges to take to pulp mills.
(2) To reduce the risks posed by the hazard, the report recommends that a management plan be created to determine the level of soil contamination and for managing excavated soil, and to decommission disused septic tanks to prevent the spread of contamination.
(3) Although only a small section of the site has been excavated, there are baths, luxurious houses, an amphitheatre, a forum, shops, gardens with working fountains and city walls to explore, with many wonderful mosaics still in situ.
(4) The proximal tibial metaphyses of ten New Zealand white rabbits were excavated and filled with sheets of polyvinyl alcohol, into which a suspension of B. fragilis cells was injected on the right side, while saline was used on the left side.
(5) For miles, only the strip of land for the track is dug up, but in places the footprint is much wider: access routes for work vehicles; holding areas for excavated earth; new electricity substations; mounds of ballast prepared for the day when quarries cannot keep pace with the demands of the construction; extra lines for the trains that will lay the track.
(6) And it is allowed to deal in gold not excavated from the ground according to the well-known aharia frameworks with immediate effect.
(7) Protected by a rusty padlocked gate, Macrinus's tomb was targeted by thieves after it was first excavated in 2008.
(8) The injury begins as a small nodule with a keratotic innermost part that rapidly is excavated, grows centrifugally, appearing as a new lesion, an expansion of the primary one, in the posterior higher region, with the same characteristics.
(9) The purpose of this paper is to present a Mediaeval skeleton of an approximately 16 year old boy, which was excavated at a Danish cemetery containing ca.
(10) Huang Ren Zhong's striped parasol stands out against the muddy cliff of excavated earth.
(11) No matter how "sophisticated" they may seem to have become, contemporary methods for bioplanimetry of the optic disc vary in precision; easily overlooked or neglected optical influences must, indeed, be taken into consideration; and, of greatest detriment to the meaningfulness of any and all such results is the fact that even "experts" have difficulty in uniformly and reproducibly indicating where the boundaries of the optic disc and its excavation actually lie.
(12) The dissident Gleb Yakunin excavated evidence from the KGB archives in the 1990s that fingered high-ranking priests as KGB agents, including the former head of the church, Aleksei II, and the current, Patriarch Kirill I.
(13) Prolonged respiratory assistance by positive pressure ventilation via cuffed tracheostomy or endotracheal tube can be complicated by mucosal erosions, tracheal stenosis, tracheomalacia, excavation of the tracheal wall with loss of tissue and tracheoesophageal fistula.
(14) Eleven human optic nerves from subjects in different decades ranging from the fifth to the ninth were investigated with the silver carbonate method to establish the pattern and frequency of age changes within the optic nerve head and their relationship with the glaucomatous excavation.
(15) Such differential mineralization points on physiological and pathological processes in bone and teeth, and is frequently conserved both in excavated skeletal remains and in cremations.
(16) Israel has said demolishing tunnels is the principal goal of its ground operation and it has released footage showing tunnels being demolished by excavators and air strikes.
(17) All these results provide a good basis for the assumption that, in glaucoma, the main factor producing restriction of the field of vision and excavations of the papilla is defective irrigation of the papillary vessels, originating in the choroid membrane, with chronic ischemia of the papilla.
(18) The excavation method allowed for a complete elimination of the decayed dentinal tissue down to the hypermineralized zone.
(19) Alfred, a student of the “father of American anthropology” Franz Boas , gathered and preserved information about native peoples and traditions in California, excavated archaeological sites in Mexico and Peru, and some years before his daughter’s birth had briefly practised as a psychoanalyst.
(20) Excavations in the Dakotas, prior to the closure of the Missouri River dams, yielded much information on demographics, anomalies, and epidemiological patterns for specific abnormalities in prior inhabitants of the area over several centuries.
Topsoiling
Definition:
(n.) The act or art of taking off the top soil of land before an excavation or embankment is begun.
Example Sentences:
(1) Unwin directed As You Like It, which closes this weekend: he will then give away a tonne of topsoil from the set to a local school, resisting the temptation to set up in the neighbouring market place and sell it.
(2) For sometime, the use of machinery and chemical fertilizers has masked the loss of topsoil, but under recent increases in population pressures, soil conservation measures are gaining in importance.
(3) The vacant town, located within the Prohibited Zone created after the Fukushima nuclear leak in 2011 (which continues to spill toxic effluent into the Pacific Ocean), was asked to host a radioactive materials storage facility, for the bags of radioactive topsoil and debris that have been sitting in fields around the area for years.
(4) There were strong positive relationships between the number of larvae and pupae and total organic matter, indicating highest concentrations of immatures in nutrient-rich topsoil with an abundant supply of larval food.
(5) Tin mining typically requires land to be bulldozed, then hosed down and dug up, meaning that the fertile topsoil so essential for agriculture and plantations is lost, and acidic soil brought to the surface instead.
(6) Elevated PbB at each specific age was associated mainly with increased lead concentrations in the topsoil of the local residential area, employment of the father in the lead industry, parental smoking, and behaviors likely to cause ingestion of dirt.
(7) Officials promised to foot the bill for the removal of topsoil from outdoor play areas in the region where levels exceed the limit.
(8) On January 1, 1989 approximately 60% of the Chernobyl caesium was still in the top 0-2 cm of the topsoil.
(9) Down below at the bottom of the mine, workers are busy running gigantic machines to remove the topsoil and dig deep into a layer of brown coal, or lignite.
(10) Towns outside the evacuation zone have sprayed streets with water and removed topsoil from school playgrounds in an attempt to make their communities safe.
(11) They're greened over now, but the scars of its industrial past are everywhere - great chunks missing from the hillsides and places where the coal dust glitters through the topsoil still.
(12) Of 1,200 sq km of known mined areas, 800 sq km have been affected by flooding and topsoil movement, a diplomatic source told the Guardian.
(13) They reduce the wind that blows away topsoil, and they provide shade to livestock, who drop manure and urine.
(14) Less than 1% of bacterial colonies isolated from garden topsoil and greater than 80% of bacteria isolated from PCB-contaminated soils showed DNA homologies with 32P-labeled DNA probes.
(15) The influence of local variations in topography and microclimate on the observed radiocaesium levels in topsoils, lichens and vascular plants was studied in detail.
(16) It is only slightly volatile, is highly soluble in water, and is moderately persistent in topsoil, where it is strongly absorbed to organic carbon.
(17) Ignoring official assurances that the exposure limit and current radiation readings in the area posed no threat to children's health, parents and teachers in Otama and five other communities in Fukushima prefecture started removing and burying topsoil from school playgrounds.
(18) As people build on these hillsides they erode the topsoil, and the rain washes the sand and rubbish from the settlements into the nature reserve on the other side of the border.
(19) Experts say that while health risks can be lowered by measures including the removal of layers of topsoil, vulnerable groups such as pregnant women and children should avoid even minimal exposure.
(20) The steps produced immediate results: radiation readings in topsoil outside Ando's school dropped from 1.32 microsieverts to 0.25 microsieverts an hour, compared with a pre-disaster reading of 0.04 microsieverts.