Search results

There is a page named "Bioturbation" on this wiki. See also the other search results found.

Page title matches

• Bioturbation
  ...rganisms moved up and down in the substrate as the tide ebbed and flowed. Bioturbation is sometimes called TTB - tracks, trails, and burrows.
  907 bytes (132 words) - 21:42, 18 September 2014

Page text matches

• Bioturbation
  ...rganisms moved up and down in the substrate as the tide ebbed and flowed. Bioturbation is sometimes called TTB - tracks, trails, and burrows.
  907 bytes (132 words) - 21:42, 18 September 2014
• Petroleum source rock formation
  ...ick depositional laminae, which reflect no sediment-churning bioturbation. Bioturbation records sediment invasion mainly by animals grazing on hydrogen-ri h sedime
  2 KB (296 words) - 17:35, 13 April 2022
• Pore and pore throat sizes
  ...lity]]). Disparate Archie rock types such as quartz-cemented sandstones, [[Bioturbation|bioturbated]] sandstones, and sucrosic dolomites have aspect ratios that ra
  4 KB (516 words) - 14:04, 4 April 2022
• Contourites
  ...blelags, etc. The preservation of these depends greatly on the degree of [[bioturbation]] that can reach delete left a massive structure. ...are sandy facies wich are well selected and stratified with gradations and bioturbation and organic traces can be abundant predominates.
  13 KB (1,889 words) - 19:11, 6 April 2016
• Depositional environments
  ...ts consist of gently dipping, curved or irregular surfaces of erosion with bioturbation traces from insects and plants , poorly laminated, thin laye of coarse sand ...rite that consist a lot of sand has a thin and random layers, fine grains, bioturbation, and shows cross-lamination.
  26 KB (3,851 words) - 20:38, 28 February 2019
• Organic facies
  ...ediments. Terrestrial organic matter can be a significant contributor, but bioturbation of bottom sediments may be sufficient to degrade marine organic matter to t ...water depth, water temperature and chemistry, wave and storm activity, and bioturbation related to oxygen availability in bottom sediments.
  17 KB (2,472 words) - 17:39, 13 April 2022
• Sandstone
  ...en sediments newly deposited include reworking of sediments by organism ([[bioturbation]]), minor compaction and grain repacking, and mineralogical changes.<ref na
  10 KB (1,508 words) - 15:44, 22 March 2019
• Carbonate sedimentary rocks classification
  # [c] If the microcrystalline limestone had been disturbed either by bioturbation or soft-sediment deformation, the term “disturbed microcrystalline limest
  16 KB (1,986 words) - 14:09, 19 December 2023
• Mudstone nomenclature
  ...pension) and is subsequently modified by postdepositional processes (e.g., bioturbation, diagenesis). (It is particularly important to recognize the effects of dia ...ieber, J., 2003, Simple gifts and buried treasures—Implications of finding bioturbation and erosion surfaces in black shales: The Sedimentary Record, v. 1, no. 2,
  58 KB (8,391 words) - 19:46, 20 February 2024
• Reservoir quality
  ...rosity) by causing a looser grain packing and by producing small faults. [[Bioturbation]] typically decreases reservoir quality by mixing adjacent sands and clays,
  18 KB (2,514 words) - 17:47, 21 January 2022
• Delta plain, upper
  ...s of stratification include parallel and lenticular laminations, intense [[bioturbation]], and occasionally distorted primary structures. ...c activity, however, does not normally cease, and burrowing and abundant [[bioturbation]] of soft-bodied organisms can totally obliterate the primary structures ([
  33 KB (4,905 words) - 16:40, 6 April 2016
• Delta plain, subaqueous
  ...clay laminations, thin graded silt and silty clay parallel laminations, [[bioturbation]] (generally confined to the clay laminations), and slump structures are co ...ownward into norma open-marine shelf environments, that often show intense bioturbation.
  60 KB (9,022 words) - 17:17, 21 March 2016
• The Neuquén Basin: Sequence Stratigraphy of Vaca Muerta Formation
  ...s that put particles suspension and subsequent decanting. The absence of [[bioturbation]], dark colors, and bindstones suggest a low rate of sedimentation, low ene
  16 KB (2,490 words) - 15:32, 8 January 2021
• Carbonate reservoir
  ...of sediment on the sea floor. Pervasive early cementation and extensive [[bioturbation]] significantly reduce the porosity and permeability from an early stage. ...rm as thicker masses and this results in the bulk of the sediment escaping bioturbation and early cementation at the sediment-sea water interface.
  38 KB (5,571 words) - 15:31, 16 January 2024
• Thin section analysis
  ...ely following sedimentation by depositional processes, infiltration, and [[bioturbation]]. It can occur as grain coatings, dispersed matrix, laminae, or discrete g
  24 KB (3,264 words) - 15:09, 24 January 2022
• Quick-look lithology from logs
  * Clay added later due to [[bioturbation]] or mechanical infiltration at the top of a gravel may create a bell shape
  25 KB (3,637 words) - 19:39, 18 January 2022
• Lithofacies and environmental analysis of clastic depositional systems
  ...el deposits also varies as a function of sand to mud ratio and degree of [[bioturbation]].
  38 KB (5,198 words) - 22:11, 15 January 2024
• Data: sources
  * [[bioturbation]]
  43 KB (6,686 words) - 13:44, 18 March 2019
• Wattenberg field
  ...detrital and diagenetic. The sandstones are bioturbated, and the amount of bioturbation decreases vertically in abundance. Higher energy conditions in the upper Fo
  72 KB (10,249 words) - 20:06, 15 January 2024
• Vaca Muerta play
  ...ts and upper foresets was poor because of the erosional currents, the high bioturbation, and the oxygenated seafloor. Instead, the lower foresets and bottomsets pr
  77 KB (11,201 words) - 20:07, 15 January 2024

View (previous 20 | next 20) (20 | 50 | 100 | 250 | 500)