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Geologic structures formed during sediment deposition
Sedimentary structures include all kinds of features in sediments and sedimentary rocks, formed at the time of deposition. Sediments and sedimentary rocks
Sedimentary_structures
Rock formed by the deposition and cementation of particles
strata, forming a structure called bedding. Sedimentary rocks are often deposited in large structures called sedimentary basins. Sedimentary rocks have also
Sedimentary_rock
Hydrological feature
sediments may contain a range of material, from gravel to mud, and the sedimentary structures vary widely. Thus, wadi sediments are the most diverse of all desert
Wadi
Vegetation-induced sedimentary structures (VISS) are primary sedimentary structures formed by the interaction of detrital sediment with in situ plants
Vegetation-induced sedimentary structures
Vegetation-induced_sedimentary_structures
Sedimentary rocks made of mineral or rock fragments
destroy sedimentary structures that were present upon deposition of the sediment. Structures such as lamination will give way to new structures associated
Clastic_rock
Particulate solid matter deposited on a planetary surface
sedimentation; if buried, they may eventually become sandstone and siltstone (sedimentary rocks) through lithification. Sediments are most often transported by
Sediment
Dam in Mahisagar district
The dam has an installed capacity of 240 MW. Kadana Eddy Marking Sedimentary Structures nearby has been declared a National Geological Monuments of India
Kadana_Dam
Marine environment between the shore and the continental shelf
clear,[clarification needed] allowing the formation of different sedimentary structures, carbonate rocks, coral reefs, and allowing certain organisms to
Shallow water marine environment
Shallow_water_marine_environment
Set of structures in sediments or sedimentary rocks
after Arnold H. Bouma [nl], 1932–2011) describes a classic set of sedimentary structures in turbidite beds deposited by turbidity currents at the bottoms
Bouma_sequence
Geologic formation
sediment deformation structures, including sand volcanos, sand blows, and certain clastic dikes. Allen, John R. L. Sedimentary Structures, Their Character
Soft-sediment deformation structures
Soft-sediment_deformation_structures
Colored cement bands in sedimentary rocks
of cement observed in sedimentary rocks that typically cut across bedding. These secondary (diagenetic) sedimentary structures exhibit bands of (authigenic)
Liesegang_rings_(geology)
Sedimentary structures
Teepee (also spelled tepee or tipi) structures are sedimentary structures interpreted to represent formation in peritidal environments. Teepees are largely
Teepee_structure
Type of sedimentary rock
Sandstone is a clastic sedimentary rock composed mainly of sand-sized (0.0625 to 2 mm) silicate grains, cemented together by another mineral. Sandstones
Sandstone
Study of natural sediments and their formation processes
through observations of sedimentary rocks and sedimentary structures. Sedimentology is a subdiscipline of geology. Sedimentary rocks cover up to 75% of
Sedimentology
Microbially induced sedimentary structures (MISS) are primary sedimentary structures formed by the interaction of microbes with sediment and physical agents
Microbially induced sedimentary structure
Microbially_induced_sedimentary_structure
Processes associated with the deposition of a particular type of sediment
In geology, depositional environment or sedimentary environment describes the combination of physical, chemical, and biological processes associated with
Depositional_environment
A dish structure is a type of sedimentary structure formed by liquefaction and fluidization of water-charged soft sediment either during or immediately
Dish_structure
pattern of the structure is said to resemble the backbone structure of a herring fish. Lehner, S. "Glossary of Sedimentary Structures". Sedimentology/Stratigraphy
Herringbone cross-stratification
Herringbone_cross-stratification
Type of sedimentary rock
Limestone is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite
Limestone
Sedimentary rocks containing 15 wt.% or more iron
Iron-rich sedimentary rocks are sedimentary rocks which contain 15 wt.% or more iron. However, most sedimentary rocks contain iron in varying degrees
Iron-rich_sedimentary_rocks
Pattern of cracks in dried muddy soil
(also known as mud cracks, desiccation cracks or cracked mud) are sedimentary structures formed as muddy sediment dries and contracts. Crack formation also
Mudcrack
Vertical nested structure like tightly packed ice cream cones stacked inside one another
Cone-in-cone structures are secondary sedimentary structures that form in association with deeper burial and diagenesis. These vertically nested structures resemble
Cone-in-cone_structures
Hard, fine-grained sedimentary rock composed of cryptocrystalline silica
Chert (/tʃɜːrt/) is a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz, the mineral form of silicon dioxide
Chert
as current lineation or primary current lineation) is a subtle sedimentary structure in which sand grains are aligned in parallel lines or grooves on
Parting_lineation
erase fossils from geologic units. Stromatolites are laminated sedimentary structures created by photosynthetic organisms as they establish a microbial
Earliest_known_life_forms
Multi-layered sheet of microorganisms
induced sedimentary structures (MISS) formed 3,480 million years ago have been found in western Australia. At that early stage the mats' structure may already
Microbial_mat
Sedimentary rock composed of smaller rock fragments
to sandstones in origin, and exhibit many of the same types of sedimentary structures, such as tabular and trough cross-bedding and graded bedding. Fanglomerates
Conglomerate_(geology)
Sedimentary structure made up of interbedded deposits of sand and mud
Heterolithic bedding is a sedimentary structure made up of interbedded deposits of sand and mud. It is formed mainly in tidal flats but can also be formed
Heterolithic_bedding
Geologic formation in Western Australia
such as morphologically diverse stromatolites, microbially induced sedimentary structures, putative organic microfossils, and biologically fractionated carbon
Dresser_Formation
Sedimentary structures in sandstone beds deposited by high-density turbidity currents
The Lowe sequence describes a set of sedimentary structures in turbidite sandstone beds that are deposited by high-density turbidity currents. It is intended
Lowe_sequence
Society of Poland) 40: pp. 3–30 Collinson, John D. (1994) "Sedimentary deformational structures" pp. 95–125 In Maltman, Alex J. (editor) (1994) The Geological
Flame_structure
Mesoproterozoic rock formation in the Grand Canyon, Arizona
the Cardenas Lava. The Shinumo Quartzite exhibits a variety of sedimentary structures. The sandstones of the lower and lower-middle members exhibit centimeter-
Shinumo_Quartzite
Naturally occurring mineral aggregate
objects. Rocks are usually grouped into three main groups: igneous rocks, sedimentary rocks and metamorphic rocks. Igneous rocks are formed when magma cools
Rock_(geology)
Sedimentary structures found on the bases of certain strata
Sole marks are sedimentary structures found on the bases of certain strata, that indicate small-scale (usually on the order of centimetres) grooves or
Sole_markings
Sedimentary structure caused by shrinkage
Syneresis cracks (also known as subaqueous shrinkage cracks) are a sedimentary structure developed by the shrinkage of sediment without desiccation – not
Syneresis_crack
Layered sedimentary structure
layered, biochemical, accretionary structures formed in shallow water by the trapping, binding and cementation of sedimentary grains in biofilms (specifically
Stromatolite
Hard, non-foliated metamorphic rock
former cementing material. Most or all of the original texture and sedimentary structures of the sandstone are erased by the metamorphism. The recrystallized
Quartzite
Submarine features associated with island arcs and subduction zones
two sub-systems based on the differences in lithology, texture, sedimentary structures, and bedding style. These systems are inner and midfan subsystem
Back-arc_basin
Wave structures created in sediments by bottom current
In geology, ripple marks are sedimentary structures (i.e., bedforms of the lower flow regime) and indicate agitation by water (current or waves) or directly
Ripple_marks
Body of rock with specified characteristic
of an outcrop in the field would include: composition, texture, sedimentary structure(s), bedding geometry, nature of bedding contact, fossil content
Facies
A way up structure, way up criterion, or geopetal indicator is a characteristic relationship observed in a sedimentary or volcanic rock, or sequence of
Way_up_structure
Geological feature
result of the impact of raindrop impacts on soft sediment surfaces. Sedimentary structures with similar appearance have been found. They can be considered
Raindrop_impressions
Creationist term for a fossil that extends through more than one geological stratum
enclosing modern upright trees are often virtually identical in their sedimentary structures, external and internal layering, texture, buried soils, and other
Polystrate_fossil
Geological feature resulting from the movement of bed material by fluid flow
Tendency for particles in suspension to settle down Sedimentary structures – Geologic structures formed during sediment deposition Southard, J B (1991)
Bedform
Silt deposition landform at the mouth of a river
less constant rate until they fizzle out. A tidal freshwater delta is a sedimentary deposit formed at the boundary between an upland stream and an estuary
River_delta
Bulges, lumps, and lobes that form on bedding planes
from deformational structures in young lacustrine sediments. Tectonophysics, 29:141–152. Allen JRL (1984). Sedimentary structures. Their character and
Load_cast
Sedimentary structure formed by water
Sediment and Sedimentary Rocks. Dordrecht, Kluwer Academic, 928 pp. ISBN 978-1402008726 McKee, E.D., 1964. Glossary of Primary Sedimentary Structures. In Middleton
Sand_wave
Sedimentary structure found in sandstones
Hummocky cross-stratification is a type of sedimentary structure found in sandstones. It is a form of cross-bedding usually formed by the action of large
Hummocky_cross-stratification
Type of solid bitumen, or rock containing solid bitumen
deposits that retain sedimentary structures are interpreted as metamorphosed oil source rocks. Some mushroom shaped structures have been interpreted
Shungite
Worldwide glaciation episodes during the Proterozoic eon
tropics. This evidence must prove three things: That a bed contains sedimentary structures that could have been formed only by glacial activity; That the bed
Snowball_Earth
Metamorphic rock
foliated, homogeneous, metamorphic rock derived from an original shale-type sedimentary rock composed of clay or volcanic ash through low-grade, regional metamorphism
Slate
Geologic formation in the United States
identified on the basis of grain size, feldspathic content, and sedimentary structures. The Jordan is an important source of silica. Historically, the
Jordan_Formation
American geobiologist
sedimentology of biofilm forming sedimentary structures in modern aquatic environments, where clastic deposits dominate. Such structures occur in the fossil record
Nora_Noffke
Ribbon-like veins and nodules of calcite
Molar tooth structures are ribbon-like veins and nodules of calcite that are found widespread in Precambrian carbonate sedimentary rocks between approximately
Molar_tooth_structure
Ball-and-pillow structures are masses of clastic sediment that take the form of isolated pillows or protruding ball structures. These soft-sediment deformations
Ball-and-pillow_structures
A fossil beach, also known as a paleo-beach, fossil strandline or raised beach, is an ancient oceanic or lacustrine beach preserved in fossil form due
Fossil_beach
Geological record of biological activity
(sedimentological structures produced by biological means; for example, the formation of stromatolites). However, most sedimentary structures (for example
Trace_fossil
Old and stable part of the continental lithosphere located in Pilbara, Western Australia
uncovered in the Dresser Formation in the Pilbara Craton. Biogenic sedimentary structures (microbialites) such as stromatolites and MISS were described from
Pilbara_Craton
mineral or sedimentary rock deposit is generated where it is found or observed. Such deposits are described as authigenic. Authigenic sedimentary minerals
Authigenesis
Tendency for particles in suspension to settle down
formation of sedimentary rock. The term is broadly applied to the entire range of processes that result in the formation of sedimentary rock, from initial
Sedimentation
Rivers rising from chalk bedrock
sequence Point bar Ravine Rill River island Rock-cut basin Sedimentary basin Sedimentary structures Strath Thalweg River valley Wadi Fluvial flow Helicoidal
Chalk_stream
Geologic eon, 4031–2500 million years ago
Christian D, Wacey D, Hazen RM (December 2013). "Microbially induced sedimentary structures recording an ancient ecosystem in the ca. 3.48 billion-year-old
Archean
Trace fossil
Oncolites are sedimentary structures composed of oncoids, which are layered structures formed by the growth of one or more species of microorganisms, usually
Oncolite
Earth's most severe extinction event
non-reef ecosystems recovered their diversity. Microbially induced sedimentary structures (MISS) from the earliest Triassic have been found to be associated
Permian–Triassic extinction event
Permian–Triassic_extinction_event
Accumulated material on seafloor
(1994). Sedimentary Structures and Early Diagenetic Features of Shallow Marine Carbonate Deposits (First ed.). Tulsa, Oklahoma: Society of Sedimentary Geology
Marine_sediment
Regions of long-term subsidence creating space for infilling by sediments
Sedimentary basins are region-scale depressions of the Earth's crust where subsidence has occurred and a thick sequence of sediments have accumulated
Sedimentary_basin
Circular geological feature in the Sahara desert
overlying sedimentary rock layers, causing the rock to be exposed as concentric rings with the oldest layers exposed at the centre of the structure. Igneous
Richat_Structure
Sedimentary Structures, 4th ed. Dunedin, England, Academic Press Ltd. 779 pp. ISBN 978-1780460628 Crowell, J.C., 1955. Directional-current structures
Fluting_(geology)
Third planet from the Sun
David; Hazen, Robert M. (8 November 2013). "Microbially Induced Sedimentary Structures Recording an Ancient Ecosystem in the ca. 3.48 Billion-Year-Old
Earth
Methane-water lattice compound
constituents of the shallow marine geosphere and they occur in deep sedimentary structures and form outcrops on the ocean floor. Methane hydrates are believed
Methane_clathrate
A tidal bundle is a sedimentary structure that forms in tidal areas as a result of spring and neap tides. A tidal bundle sequence can be seen as a variation
Tidal_bundle
Ancestor of all current life on Earth
; Wacey, D.; Hazen, R. M. (December 2013). "Microbially induced sedimentary structures recording an ancient ecosystem in the ca. 3.48 billion-year-old
Last universal common ancestor
Last_universal_common_ancestor
Movement of solid particles, typically by gravity and fluid entrainment
Introduction to Fluid Motions, Sediment Transport, and Current-generated Sedimentary Structures; As taught in: Fall 2006. Massachusetts Institute of Technology
Sediment_transport
Sedimentary bedding pattern displaying alternating layers of mud and sand
Lenticular bedding is a sedimentary bedding pattern displaying alternating layers of mud and sand. Formed during periods of slack water, mud suspended
Lenticular_bedding
Rock consolidated from volcanic ash
poorly sorted and pool in low terrain. Surge deposits sometimes show sedimentary structures typical of high-velocity flow, such as dunes and antidunes. Volcanic
Tuff
This list of impact structures (including impact craters) on Earth contains the majority of the 194+ confirmed impact structures given in the Earth Impact
List of impact structures on Earth
List_of_impact_structures_on_Earth
Stratigraphic sequence
successions typically include lava flows, pyroclastic deposits, sedimentary structures, and reworked volcaniclastic material, reflecting the coupled interaction
Volcano-sedimentary_sequence
Cambrian geologic formation found in the Southwestern United States
dolomites mostly retain their original sedimentary textures despite dolomitization. The sedimentary structures include wavy and asymmetric ripple laminations
Frenchman_Mountain_Dolostone
Method to visualize the chronology of the universe
David; Hazen, Robert M. (8 November 2013). "Microbially Induced Sedimentary Structures Recording an Ancient Ecosystem in the ca. 3.48 Billion-Year-Old
Cosmic_Calendar
Bands or layers that can sometimes be seen in rock that formed from magma
flow banding can occur with crystal accumulation, forming pseudo-sedimentary structures. Cumulate rock Igneous differentiation Morris, Christopher Gilbert
Flow_banding
Lagerstätte in Wisconsin, USA
of the supercontinent Laurentia. Ripple marks and numerous other sedimentary structures identical to those found on modern beaches abound on the strata
Blackberry_Hill
Matter with biological processes
Daniel; Wacey, David; et al. (8 November 2013). "Microbially Induced Sedimentary Structures Recording an Ancient Ecosystem in the ca. 3.48 Billion-Year-Old
Life
Layered iron-rich sedimentary rock
(BIFs; also called banded ironstone formations) are distinctive units of sedimentary rock consisting of alternating layers of iron oxides and iron-poor chert
Banded_iron_formation
Underwater feature connecting the continental slope and the abyssal plain
stretches 3,000 kilometers (1,900 miles), make up one of the largest sedimentary structures in the world. Many alluvial fans also contain critical oil and natural
Continental_rise
First of three epochs of the Triassic Period
recover from the Permian-Triassic extinction. Microbially induced sedimentary structures (MISS) are common in the fossil record of North China in the immediate
Early_Triassic
Global sum of all ecosystems on Earth
David; Hazen, Robert M. (8 November 2013). "Microbially Induced Sedimentary Structures Recording an Ancient Ecosystem in the ca. 3.48 Billion-Year-Old
Biosphere
Type of sediment deposit
type of rock that the water flow or glacial ice sheet moves over. Sedimentary structures found in subaqueous fans are heavily dependent on the strength of
Subaqueous_fan
Astrobiologist
Lisa Mary (1982). A paleo-oceanographic interpretation of the sedimentary structures, clay minerals, and organic matter in a core of the Middle Cretaceous
Lisa_Pratt
River section with little or no current
(PDF). An Introduction to Fluid Motions, Sediment Transport, and Current-generated Sedimentary Structures. MIT OpenCourseWare. Retrieved 16 March 2010.
Backwater_(river)
Inactive river or stream channel that has been filled or buried
palaeochannel and its enclosing sedimentary deposits may consist of unconsolidated, semi-consolidated, or well-cemented sedimentary strata depending on the action
Palaeochannel
Geologic deposit of a turbidity current
different set of sedimentary structures develops in turbidites deposited by high-density turbidity currents. This different set of structures is known as the
Turbidite
Part of the seafloor undisturbed by waves
moved around, resulting in a sedimentary structure form described as hummocky cross-stratification. Sedimentary structures R. G. Dean and R. A. Dalrymple
Lower_shoreface
American geologist
ISBN 978-3-540-05528-0 Sedimentary Rocks, Harpercollins; 3rd edition (1983) ISBN 978-0-06-045191-2 Atlas and Glossary of Sedimentary Structures, Springer Verlag
Francis_J._Pettijohn
Layer of sediment, sedimentary rock, or pyroclastic material
In geology, a bed is a layer of sediment, sedimentary rock, or volcanic rock "bounded above and below by more or less well-defined bedding surfaces".
Bed_(geology)
Fine grained natural soil
Clay is a common component of sedimentary rock. Shale is formed largely from clay and is the most common of sedimentary rocks. However, most clay deposits
Clay
Preserved remains or traces of organisms from a past geological age
Stromatolites are layered accretionary structures formed in shallow water by the trapping, binding and cementation of sedimentary grains by biofilms of microorganisms
Fossil
Period of worldwide glaciation during the Cryogenian period
carbon isotopes, mineral deposits (including sedimentary baryte), and other unusual sedimentary structures. Two diamictite-rich layers in the top 1 km
Marinoan_glaciation
Thin layers present in sedimentary rock
occurs in sedimentary rocks. Laminae are normally smaller and less pronounced than bedding. Lamination is often regarded as planar structures one centimetre
Lamination_(geology)
Cambrian geologic formation found in the Southwestern United States
are interbedded in cm-scale cycles. They also exhibit abundant sedimentary structures that include current, oscillation, and interference ripples. The
Bright_Angel_Shale
Enigmatic Cambrian fossil
as is evidenced by cross-cutting relationships of the trail with sedimentary structures such as ripple marks. While the identity of the trace-maker remains
Climactichnites
SEDIMENTARY STRUCTURES
SEDIMENTARY STRUCTURES
SEDIMENTARY STRUCTURES
SEDIMENTARY STRUCTURES
Girl/Female
Teutonic
Armored battle maiden.
Girl/Female
American, German, Hawaiian, Hebrew, Indian, Parsi, Turkish
Circle of Cristalic Light Around the Sun or Moon; Deer
Female
Spanish
Pet form of Spanish Gracia, GRACIELA means "pleasing, agreeable."
Girl/Female
American, British, English
Beverage Brandy; Combination of Brandy and Lynn; Variant of the Beverage Brandy Used as a Given Name
Girl/Female
Indian, Japanese, Moldovan, Russian
Natural
Girl/Female
Indian
Firm, Young girl
Boy/Male
Indian
A name of Vishnu, Without enemies
Girl/Female
Hindu, Indian
Goddess Saraswati
Girl/Female
Tamil
Kokila, Singer
Boy/Male
Bengali, Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Telugu
The Wise One
SEDIMENTARY STRUCTURES
SEDIMENTARY STRUCTURES
SEDIMENTARY STRUCTURES
SEDIMENTARY STRUCTURES
SEDIMENTARY STRUCTURES
n. pl.
Balancers; the rudimentary hind wings of Diptera.
a.
Having concealed or rudimentary gills.
a.
Caused by long sitting.
a.
Relating to the blastema; rudimentary.
a.
Remaining in one place, especially when firmly attached to some object; as, the oyster is a sedentary mollusk; the barnacles are sedentary crustaceans.
n.
Quality of being sedentary.
a.
Characterized by, or requiring, much sitting; as, a sedentary employment; a sedentary life.
a.
Rudimentary.
a.
Accustomed to sit much or long; as, a sedentary man.
n.
The material of which sedimentary rocks are formed.
n.
A rudimentary branchia, or gill.
a.
Very imperfectly developed; in an early stage of development; embryonic.
a.
Sedimentary.
a.
Of or pertaining to rudiments; consisting in first principles; elementary; initial; as, rudimental essays.
a.
Of or pertaining to sediment; formed by sediment; containing matter that has subsided.
adv.
In a sedentary manner.
n.
In Diptera, the rudimentary posterior wing.
a.
Inactive; motionless; sluggish; hence, calm; tranquil.
n.
A fine-grained sedimentary rock of a thin, laminated, and often friable, structure.
a.
Containing the first principles or doctrines; elemental; rudimentary.