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...is the borehole core recovery percentage of solid, cylindrical, pieces of rock core. ==Rock quality designation== ...

...me=Barton2002/><ref name=Barton2006/> It expresses the quality of the rock mass in the so-called ''Q-value'', on which design are based and support recomm ...ess reduction factor)'' is related to the stress environment on the intact rock blocks and discontinuities around the underground excavation. ...

...s]] to predict the [[material failure theory|failure]] of [[Rock (geology)|rock]].<ref name=Hoek/><ref name=Pariseau/> The original version of the Hoek–Br ...ion between the stress state and Bieniawski's [[Rock Structure Rating|rock mass rating]] (RMR).<ref name=Bien/> ...

....org/10.1007/s00603-017-1305-0.</ref> It expresses the quality of the rock mass for [[slope stability]] using the Q-slope value, from which long-term stabl ...weathering|ice wedging]], as may seasonally occur at opposite ends of the rock-type and regional spectrum. There are also slope-relevant SRF (strength red ...

...ty (Geotechnical engineering)|discontinuity]] in a [[Rock (geology)|rock]] mass based on visual and tactile (i.e. by feeling) characterization of the [[Dis ...r/> The ''sliding criterion'' is part of the [[Slope Stability Probability Classification]] (SSPC)<ref name=HackPriceRengers/> system for slope stability analyses. ...

...[[Ganymede (moon)|Ganymede]]) in conjunction with the proximity and great mass of Jupiter. This leads to widespread and intensive volcanism. To explore the origin of Io's mountains, classification of morphological types and description of morphological features are necess ...

{{Short description|Method for analyzing stability of slopes of soil or rock}} ...k-fill dams, embankments, excavated slopes, and natural slopes in soil and rock. ...

...of [[sediment]], or the [[lithification|lithified]] particles in [[clastic rock]]s. The term may also be applied to other [[granular material]]s. This is ...14688-1:2017 – Geotechnical investigation and testing – Identification and classification of soil – Part 1: Identification and description |publisher=International O ...

...alyzing the age]] of [[zircon]]s deposited within a specific [[sedimentary rock|sedimentary unit]] by examining their inherent [[radioisotope]]s, most comm ...ported, deposited and preserved as detrital zircon grains in [[sedimentary rock]]s.<ref name=":04" /> ...

...d in [[structural geology]]. It enables monitoring and characterisation of rock bodies.<ref name=":17" /> This method's typical use is to acquire high reso ...causing [[Landslide|slope failures]] or separating a rock mass into intact rock blocks ([[rockfall]]).<ref name=":1">{{Cite journal|last1=Akturk|first1=Emr ...

...dies such as [[Igneous rock|igneous]] and [[Metamorphic rock|metamorphic]] rock [[petrogenesis]], early earth mantle-crust differentiation, and [[Provenanc ...<ref name=":1"/><ref name=":3"/> The measured ratio can be obtained from [[mass spectrometry]]. A common practice for geochronological dating is to establi ...

...ray diffraction ([[X-ray Diffraction|XRD]]) and inductively coupled plasma-mass spectrometry ([[ICP-MS]]) are widely employed in the study of slag. ...such as shape, colour, porosity and even smell are used to make a primary classification to ensure representative samples from slag heaps are obtained for future mi ...

...phical representation of the pressure-temperature history of a metamorphic rock}} ...hermal conductivity]] of the rock upon increasing P-T condition, while the rock instantaneously experienced the pressure changes. Garnet and cordierite do ...

...ísimo Señor Don Ramón Iribarren Cavanilles |trans-title=Second anniversary mass of Exc. Sr. D. Ramón Iribarren Cavanilles |url=http://hemeroteca.abc.es/nav ...">{{cite thesis |type=PhD |last=Van der Meer |first=J.W. |date=1988 |title=Rock slopes and gravel beaches under wave attack |publisher=Delft University of ...

Trommel screens can be used in a variety of applications such as classification of solid waste and recovery of valuable minerals from raw materials. Tromme ...duction rate are the [[Angular velocity|rotational velocity]] of the drum, mass flow rate of feed particles, size of the drum, and inclination of trommel s ...

Numerical modelling has been used to assist in the study of [[rock mechanics]], thermal history of rocks, movements of tectonic plates and the ...(geology)|analog modeling]], which simulates nature with reduced scales in mass, length, and time, was one of the major ways to tackle geological problems, ...

| mass = {{val|1.20|0.05|e=21|u=kg}}<ref name="Morgado2023"/>{{rp|page=3}} ...er Q (for 'Quaoar') with a canoe, and is stylized to recall angular Tongva rock art.<ref name=anderson>{{cite web |url=http://blog.unicode.org/2022/05/out- ...

...]]s near [[Haiphong]], [[North Vietnam]].<ref name="Knipp"/> The [[coronal mass ejection]] (CME)'s transit time from the [[Sun]] to the [[Earth]] is the fa ...C }}</ref> McMath 11976 produced 67 solar flares (4 of these [[Solar flare#Classification|X-class]]) during the time it was facing Earth, from 29 July to 11 August.< ...

* The sample, either a rock or a mineral, is cut into a block and polished on both sides until a thin ( ...rest within the sample; A is the absorbance of the species; M is the molar mass (in g mol⁻¹); ϵ is molar absorptivity (in L mol⁻¹ cm ...

...entific techniques such as [[secondary ion mass spectrometry|secondary ion mass spectrometry (SIMS)]], optical and [[atomic force microscopy|atomic force m ...size from 10⁻⁸ to 10⁻³ m, and were correlated to the mass of meteoroids based on impact simulations.<ref>{{cite journal |last1=Hörz | ...