accretion

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Related to accretionary: accretionary growth, accretionary prism

accretion

[ah-kre´shun]

1. growth by addition of material.

2. accumulation.

adherence of parts normally separated.

ac·cre·tion

(ă-krē'shŭn),

1. Increase by addition to the periphery of material of the same nature as that already present; for example, the manner of growth of crystals. Synonym(s): accrementition (2)

2. In dentistry, foreign material (usually plaque or calculus) collecting on the surface of a tooth or in a cavity.

3. A growing together.

[L. accretio, fr. ad, to, + crescere, to grow]

accretion

/ac·cre·tion/ (ah-kre´shun)

1. growth by addition of material.

2. accumulation.

3. adherence of parts normally separated.

accretion

[əkrē′shən]

Etymology: L, accrescere, to increase

1 growth by the addition of material similar to that already present.

2 the adherence or growing together of parts that are normally separated.

3 an accumulation of foreign material, especially within a cavity. accrete, v., accretive, adj.

ac·cre·tion

(ă-krē'shŭn)

1. Increase by addition to the periphery of material of the same nature as that already present; e.g., the manner of growth of crystals.

2. dentistry Foreign material (usually plaque or calculus) collecting on the surface of a tooth or in a cavity.

3. A growing together of parts normally separate.

[L. accretio, fr. ad, to, + crescere, to grow]

ac·cre·tion

(ă-krē'shŭn)

In dentistry, foreign material (usually plaque or calculus) collecting on the surface of a tooth or in a cavity.

[L. accretio, fr. ad, to, + crescere, to grow]

accretion

1. growth by addition of material.

2. accumulation.

3. adherence of parts normally separated.

References in periodicals archive ?

A new Bathymodiolus from cold seep areas on the Barbados Accretionary Prism.

New record of "Bathymodiolus" mauritanicus Cosel 2002 from the Gulf of Cadiz (NE Atlantic) mud volcanoes

The net annual change to the north of the revetment is accretionary.

Shore protection and coastal change on the Lake Michigan shore: Duck Lake, Orchard Beach State Park, and Onekama, Michigan

2005, Assembly of the Annieopsquotch accretionary tract, Newfoundland Appalachians: Age and geodynamic constraints from syn-kinematic intrusions: Journal of Geology, v.

Great Mining Camps of Canada 3. the history and geology of the Buchans Mine, Newfoundland and Labrador

From the information recorded in the cores, the research team can draw conclusions on the mechanics of the accretionary wedge.

Ocean-drilling expedition cites new evidence related to origin and evolution of quakes

Looking back over skeletal diaries--high-resolution environmental reconstructions from accretionary hard parts of aquatic organisms.

The annual macroscopic growth pattern of the northern quahog [=hard clam, Mercenaria mercenaria (L.)], in Narragansett Bay, Rhode Island

6 B) producing a first order unconformity for this sector of the northern Andes and Colombian Caribbean platform when accreted the PLOCO and San Jacinto accretionary wedge (Nivia, 1996; Duque, 1984, 1980).

The Romeral Fault System: a shear and deformed extinct subduction zone between oceanic and continental lithospheres in northwestern South America

Samples, including underlying rock and accretionary mineral matter, were placed on aluminium foil, wrapped and stored in plastic bags.

Radiocarbon dates for pictographs in Ignatievskaya Cave, Russia: Holocene age for supposed Pleistocene fauna. (Notes & News)

Elsewhere, the primary driving forces for sub-seafloor groundwater flow are different; they result from sedimentation and associated compaction in deep ocean basins, tectonic thickening and compaction in subduction-zone accretionary prisms, and thermal buoyancy at volcanically active seafloor spreading centers.

Studying crustal fluid flow with ODP borehole observatories

In sections on Mezozoic-Cenozoic, Palaeozoic/Neoproterozoic, and Proterozoic orogens, they explore such topics as Andean flat-slab subduction through time, plate tectonics of the Alpine realm, constraints from detrital zircon age data on the palaeozoic palaeogeography of Mexico, ocean mafic complexes, Neoproterozoic reworking of the Palaeoproterozoic Capricorn Orogen of Western Australia and implications for the amalgamation of Rodinia, and the Palaeoproterozoic Trans-Hudson Orogen as a prototype of modern accretionary processes.

Ancient orogens and modern analogues

Suspect terranes and accretionary history of the Appalachian orogen.

Stratigraphy of the Lower Paleozoic Goldenville and Halifax groups in southwestern Nova Scotia

The mosaic formed in the course of terrain accretionary processes, which created a series of Palaeoproterozoic orogenic belts towards the edges of Archaean protocratons: along the western and southwestern borders of Karelia and Volgo-Uralia and along the northwestern border of Sarmatia (Bogdanova et al.

The crystalline basement of Estonia: rock complexes of the Palaeoproterozoic Orosirian and Statherian and Mesoproterozoic Calymmian periods, and regional correlations/Eesti kristalne aluskord: paleoproterosoilised Orosiri ja Statheri ning mesoproterosoilised Calymmi ajastu kivikompleksid ja regionaalne korrelatsioon

The basal unit has a well-developed internal structure comprising low-angle, lateral accretionary surfaces typical of deposition as bar-complexes within a laterally mobile river.

Alluvial landscapes in the temperate Balkan Neolithic: transitions to tells. (Notes & News)