Sedimentology examines sediment and rock formations on various scales, from individual grains to global patterns. It analyzes features from single clasts to depositional systems to entire basins. Sequence stratigraphy classifies rock layers into systems tracts based on their relationship to sea level changes, including falling-stage, lowstand, transgressive, and highstand tracts. It reconstructs paleogeography by correlating data from different locations and uses systems tracts to distinguish the impact of depositional events.
Boundary problems between :-
Precambrian/Cambrian
Permian/Triassic
Cretaceous/Tertiary
Neogene/Quaternary
Stratigraphic boundaries are determined by one or more of geological events such as volcanic activity, sedimentation, tectonism, paleo-environments & evolution of life.
Faunal records have played major role in determining the boundaries of the Phanerozoic units.
The other geological events are dated on the evidence of fossil records.
Komattite
Named after the Komati River in South Africa.
first described by Morris and Richard (twins) for ultramafic units in the Barberton Greenstone belt of South Africa.
Mostly of komatiite are Archean age
distributed in the Archaean shield areas.
Also a few are Proterozoic and Phanerozoic.
In all ages komatiites are highly magnesium.
Mostly a volcanic rock; occasionally intrusive.
Mafic rocks were identified as extrusive because of their volcanic textures and structures, and they seem to have been accepted as a normal component of Archean volcanic successions, Abitibi in Canada.
The ultramafic rocks were interpreted as intrusive which are founded as sills and dykes, Barberton in South Africa.
Spinifex texture-typical of Komatiites:
Lithostratigraphic units Geology By Misson Choudhury Misson Choudhury
Misson Choudhury, Budding Geologists ,graduated from utkal university odisha,now pursuing M.sc applied geology in Bangalore university ..love to geologic mapping,drawing ,climbing ,tracking..
Boundary problems between :-
Precambrian/Cambrian
Permian/Triassic
Cretaceous/Tertiary
Neogene/Quaternary
Stratigraphic boundaries are determined by one or more of geological events such as volcanic activity, sedimentation, tectonism, paleo-environments & evolution of life.
Faunal records have played major role in determining the boundaries of the Phanerozoic units.
The other geological events are dated on the evidence of fossil records.
Komattite
Named after the Komati River in South Africa.
first described by Morris and Richard (twins) for ultramafic units in the Barberton Greenstone belt of South Africa.
Mostly of komatiite are Archean age
distributed in the Archaean shield areas.
Also a few are Proterozoic and Phanerozoic.
In all ages komatiites are highly magnesium.
Mostly a volcanic rock; occasionally intrusive.
Mafic rocks were identified as extrusive because of their volcanic textures and structures, and they seem to have been accepted as a normal component of Archean volcanic successions, Abitibi in Canada.
The ultramafic rocks were interpreted as intrusive which are founded as sills and dykes, Barberton in South Africa.
Spinifex texture-typical of Komatiites:
Lithostratigraphic units Geology By Misson Choudhury Misson Choudhury
Misson Choudhury, Budding Geologists ,graduated from utkal university odisha,now pursuing M.sc applied geology in Bangalore university ..love to geologic mapping,drawing ,climbing ,tracking..
It's a general description of the DepthInsight Software Product Series, including: DepthInsight Express Edition 2015, DepthInsight Profession Edition 2015, Geomechanics, 3D Paleo-Structural Restoration, Enormous Modeling Platform and Software Development Kit.
Interpretation and recognition of depositional systems using seismic dataDiego Timoteo
ABSTRACT
The interpretation and recognition of Depositional Systems using seismic data require a strong knowledge in stratigraphy, structural geology, tectonics, biostratigraphy, sedimentology and geophysics; even when a geoscientist doesn’t be a specialist of one of these. The mentioned disciplines interact and complement each other in different stages of study and exploration of hydrocarbon basins. Five stages have been proposed and studied in Interpreting Depositional Systems. (1) Review of basic concepts used in the definition of Depositional Sequences and Systems Tracts within the context of sequence stratigraphy. (2) The deepening in the physical foundations of rocks, that allows to obtain images of the subsurface through the application of seismic reflection method. It also is indicated how to tie the seismic data with well data through the synthetic seismogram. (3) The seismic stratigraphic interpretation, describes how Depositional Sequences and their Systems Tracts are interpreted in the well and seismic data. (4) The recognition of Depositional Systems, describes how the seismic facies analysis is more accurate on the interpretation, because of the association of particular Systems Tracts with particular deposition processes. The Depositional Sequences and Systems Tracts have predictable stratal patterns and lithofacies; thus, they provide a new way to establish a chronostratigraphic correlation framework based on physical criteria. (5) The advanced seismic interpretation allows geoscientists extract more information from seismic data and their applications include hydrocarbon play evaluation, prospect identification, risk analysis and reservoir characterization.
Keywords: depositional systems, seismic stratigraphy, sequence stratigraphy, seismic sequence, seismic facies, potential reservoir rocks.
Historical geology Is the branch which deals with the history of the rocks of the earth’s crust with special emphasis on their approximate time of formation and the climate changes they have undergone since their formation.
ELEMENTS OF CORRELATION, STRUCTURAL FEATURES, METHOD OF STRATIGRAPHIC CORRELATION ,
Three principle kinds of correlations
Using sea-floor morphometrics to constrain stratigraphic models of sinuous su...Aaron Reimchen
Constructing geologically accurate reservoir models of deep-water strata is challenging due to the reliance
on incomplete or limited resolution datasets. Connecting areas of high-certainty across areas where
data is sparse or non-existent (e.g., between wellbores) is difficult and requires numerous interpretations
and assumptions. In this study, morphometric data from the Lucia Chica Channel System, offshore California,
provides high-resolution 3-D information that is used to constrain correlation and characterization
of ancient submarine channel fill deposits.
LGC field course in the Book Cliffs, UT: Presentation 1 of 14 (Principles of ...William W. Little
Introductory presentation for a professional field course titled: THE BOOK CLIFFS: A CASE STUDY IN COASTAL SEQUENCE STRATIGRAPHY, offered annually through W.W. LITTLE GEOLOGICAL CONSULTING (also offered by SCA). See details at: HTTP://LITTLEWW.WORDPRESS.COM.
LATE QUATERNARY STRATIGRAPHIC EVOLUTION OF THE NORTHERN GULF OF MEXICO MARGINDaniel Matranga
Abstract: This volume presents results from several high-resolution stratigraphic investigations of late Quaternary strata of the northern Gulf of Mexico, from the Apalachicola River to the Rio Grande. The studies characterize deposition and strata formation associated with different fluvial and deltaic systems during the most recent glacioeustatic cycle (approximately 120 ka to present).
LGC field course in the Book Cliffs, UT: Presentation 14 of 14 (Thompson Cany...William W. Little
Preview presentation on the Desert Member of the Blackhawk Formation and the Castigate Sandstone in Thompson Canyon for a professional field course titled: THE BOOK CLIFFS: A CASE STUDY IN COASTAL SEQUENCE STRATIGRAPHY, offered annually through W.W. LITTLE GEOLOGICAL CONSULTING (also offered by SCA). See details at: HTTP://LITTLEWW.WORDPRESS.COM.
LGC field course in the Book Cliffs, UT: Presentation 13 of 14 (Blue Castle B...William W. Little
Preview presentation on the Kenilworth through Desert Members of the Blackhawk Formation and the Castlegate Sandstone from the Blue Castle Butte area to Gunnison Butte for a professional field course titled: THE BOOK CLIFFS: A CASE STUDY IN COASTAL SEQUENCE STRATIGRAPHY, offered annually through W.W. LITTLE GEOLOGICAL CONSULTING (also offered by SCA). See details at: HTTP://LITTLEWW.WORDPRESS.COM.
LGC field course in the Book Cliffs, UT: Presentation 11 of 14 (Woodside Cany...William W. Little
Preview presentation on the Sunnyside Member of the Blackhawk Formation in Woodside Canyon for a professional field course titled: THE BOOK CLIFFS: A CASE STUDY IN COASTAL SEQUENCE STRATIGRAPHY, offered annually through W.W. LITTLE GEOLOGICAL CONSULTING (also offered by SCA). See details at: HTTP://LITTLEWW.WORDPRESS.COM.
LGC field course in the Book Cliffs, UT: Presentation 10 of 14 (Woodside Cany...William W. Little
Preview presentation on the Kenilworth Member of the Blackhawk Formation in Woodside Canyon for a professional field course titled: THE BOOK CLIFFS: A CASE STUDY IN COASTAL SEQUENCE STRATIGRAPHY, offered annually through W.W. LITTLE GEOLOGICAL CONSULTING (also offered by SCA). See details at: HTTP://LITTLEWW.WORDPRESS.COM.
LGC field course in the Book Cliffs, UT: Presentation 9 of 14 (Coal Creek & S...William W. Little
Preview presentation on the Aberdeen Member of the Blackhawk Formation in Coal Creek and Soldier Canyons for a professional field course titled: THE BOOK CLIFFS: A CASE STUDY IN COASTAL SEQUENCE STRATIGRAPHY, offered annually through W.W. LITTLE GEOLOGICAL CONSULTING (also offered by SCA). See details at: HTTP://LITTLEWW.WORDPRESS.COM.
LGC field course in the Book Cliffs, UT: Presentation 7 of 14 (Spring Canyon ...William W. Little
Preview presentation on the Spring Canyon Member of the Blackhawk Formation in Spring Canyon and Sowbelly Gulch for a professional field course titled: THE BOOK CLIFFS: A CASE STUDY IN COASTAL SEQUENCE STRATIGRAPHY, offered annually through W.W. LITTLE GEOLOGICAL CONSULTING (also offered by SCA). See details at: HTTP://LITTLEWW.WORDPRESS.COM.
LGC field course in the Book Cliffs, UT: Presentation 5 of 14 (Gentile Wash -...William W. Little
Preview presentation on the Storrs Member of the Star Point Sandstone in Spring Canyon and the Spring Canyon Member of the Blackhawk Formation for a professional field course titled: THE BOOK CLIFFS: A CASE STUDY IN COASTAL SEQUENCE STRATIGRAPHY, offered annually through W.W. LITTLE GEOLOGICAL CONSULTING (also offered by SCA). See details at: HTTP://LITTLEWW.WORDPRESS.COM.
LGC field course in the Book Cliffs, UT: Presentation 4 of 14 (Spring Canyon ...William W. Little
Preview presentation on the Panther Tongue of the Star Point Sandstone in Spring Canyon for a professional field course titled: THE BOOK CLIFFS: A CASE STUDY IN COASTAL SEQUENCE STRATIGRAPHY, offered annually through W.W. LITTLE GEOLOGICAL CONSULTING (also offered by SCA). See details at: HTTP://LITTLEWW.WORDPRESS.COM.
LGC field course in the Book Cliffs, UT: Presentation 3 of 14 (Gentile Wash -...William W. Little
Preview presentation on the Panther Tongue of the Star Point Sandstone in Gentile Wash for a professional field course titled: THE BOOK CLIFFS: A CASE STUDY IN COASTAL SEQUENCE STRATIGRAPHY, offered annually through W.W. LITTLE GEOLOGICAL CONSULTING (also offered by SCA). See details at: HTTP://LITTLEWW.WORDPRESS.COM.
LGC field course in the Book Cliffs, UT: Presentation 2 of 14 (Stratigraphic ...William W. Little
Stratigraphic overview for a professional field course titled: THE BOOK CLIFFS: A CASE STUDY IN COASTAL SEQUENCE STRATIGRAPHY, offered annually through W.W. LITTLE GEOLOGICAL CONSULTING (also offered by SCA). See details at: HTTP://LITTLEWW.WORDPRESS.COM.
Seminar of U.V. Spectroscopy by SAMIR PANDASAMIR PANDA
Spectroscopy is a branch of science dealing the study of interaction of electromagnetic radiation with matter.
Ultraviolet-visible spectroscopy refers to absorption spectroscopy or reflect spectroscopy in the UV-VIS spectral region.
Ultraviolet-visible spectroscopy is an analytical method that can measure the amount of light received by the analyte.
Richard's entangled aventures in wonderlandRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
Nutraceutical market, scope and growth: Herbal drug technologyLokesh Patil
As consumer awareness of health and wellness rises, the nutraceutical market—which includes goods like functional meals, drinks, and dietary supplements that provide health advantages beyond basic nutrition—is growing significantly. As healthcare expenses rise, the population ages, and people want natural and preventative health solutions more and more, this industry is increasing quickly. Further driving market expansion are product formulation innovations and the use of cutting-edge technology for customized nutrition. With its worldwide reach, the nutraceutical industry is expected to keep growing and provide significant chances for research and investment in a number of categories, including vitamins, minerals, probiotics, and herbal supplements.
THE IMPORTANCE OF MARTIAN ATMOSPHERE SAMPLE RETURN.Sérgio Sacani
The return of a sample of near-surface atmosphere from Mars would facilitate answers to several first-order science questions surrounding the formation and evolution of the planet. One of the important aspects of terrestrial planet formation in general is the role that primary atmospheres played in influencing the chemistry and structure of the planets and their antecedents. Studies of the martian atmosphere can be used to investigate the role of a primary atmosphere in its history. Atmosphere samples would also inform our understanding of the near-surface chemistry of the planet, and ultimately the prospects for life. High-precision isotopic analyses of constituent gases are needed to address these questions, requiring that the analyses are made on returned samples rather than in situ.
A brief information about the SCOP protein database used in bioinformatics.
The Structural Classification of Proteins (SCOP) database is a comprehensive and authoritative resource for the structural and evolutionary relationships of proteins. It provides a detailed and curated classification of protein structures, grouping them into families, superfamilies, and folds based on their structural and sequence similarities.
Professional air quality monitoring systems provide immediate, on-site data for analysis, compliance, and decision-making.
Monitor common gases, weather parameters, particulates.
Slide 1: Title Slide
Extrachromosomal Inheritance
Slide 2: Introduction to Extrachromosomal Inheritance
Definition: Extrachromosomal inheritance refers to the transmission of genetic material that is not found within the nucleus.
Key Components: Involves genes located in mitochondria, chloroplasts, and plasmids.
Slide 3: Mitochondrial Inheritance
Mitochondria: Organelles responsible for energy production.
Mitochondrial DNA (mtDNA): Circular DNA molecule found in mitochondria.
Inheritance Pattern: Maternally inherited, meaning it is passed from mothers to all their offspring.
Diseases: Examples include Leber’s hereditary optic neuropathy (LHON) and mitochondrial myopathy.
Slide 4: Chloroplast Inheritance
Chloroplasts: Organelles responsible for photosynthesis in plants.
Chloroplast DNA (cpDNA): Circular DNA molecule found in chloroplasts.
Inheritance Pattern: Often maternally inherited in most plants, but can vary in some species.
Examples: Variegation in plants, where leaf color patterns are determined by chloroplast DNA.
Slide 5: Plasmid Inheritance
Plasmids: Small, circular DNA molecules found in bacteria and some eukaryotes.
Features: Can carry antibiotic resistance genes and can be transferred between cells through processes like conjugation.
Significance: Important in biotechnology for gene cloning and genetic engineering.
Slide 6: Mechanisms of Extrachromosomal Inheritance
Non-Mendelian Patterns: Do not follow Mendel’s laws of inheritance.
Cytoplasmic Segregation: During cell division, organelles like mitochondria and chloroplasts are randomly distributed to daughter cells.
Heteroplasmy: Presence of more than one type of organellar genome within a cell, leading to variation in expression.
Slide 7: Examples of Extrachromosomal Inheritance
Four O’clock Plant (Mirabilis jalapa): Shows variegated leaves due to different cpDNA in leaf cells.
Petite Mutants in Yeast: Result from mutations in mitochondrial DNA affecting respiration.
Slide 8: Importance of Extrachromosomal Inheritance
Evolution: Provides insight into the evolution of eukaryotic cells.
Medicine: Understanding mitochondrial inheritance helps in diagnosing and treating mitochondrial diseases.
Agriculture: Chloroplast inheritance can be used in plant breeding and genetic modification.
Slide 9: Recent Research and Advances
Gene Editing: Techniques like CRISPR-Cas9 are being used to edit mitochondrial and chloroplast DNA.
Therapies: Development of mitochondrial replacement therapy (MRT) for preventing mitochondrial diseases.
Slide 10: Conclusion
Summary: Extrachromosomal inheritance involves the transmission of genetic material outside the nucleus and plays a crucial role in genetics, medicine, and biotechnology.
Future Directions: Continued research and technological advancements hold promise for new treatments and applications.
Slide 11: Questions and Discussion
Invite Audience: Open the floor for any questions or further discussion on the topic.
Richard's aventures in two entangled wonderlandsRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Sérgio Sacani
We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest
imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters
spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
at > 2.3µm to construct an ultradeep image, reaching as deep as ≈ 31.4 AB mag in the stack and
30.3-31.0 AB mag (5σ, r = 0.1” circular aperture) in individual filters. We measure photometric
redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts
z = 11.5 − 15. These objects show compact half-light radii of R1/2 ∼ 50 − 200pc, stellar masses of
M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
models for evolution of the dark matter halo mass function.
This presentation explores a brief idea about the structural and functional attributes of nucleotides, the structure and function of genetic materials along with the impact of UV rays and pH upon them.
What is greenhouse gasses and how many gasses are there to affect the Earth.moosaasad1975
What are greenhouse gasses how they affect the earth and its environment what is the future of the environment and earth how the weather and the climate effects.
Comparative structure of adrenal gland in vertebrates
Paleogeography and Systems Tracts
1. Scales of Study
Sedimentology is performed on a number of scales from single grains
to tectonic and hydrologically-driven global sea-level cycles.
Clast
Deposit/rock
Environment/facies
System/facies association/
architectural element
Systems tract
Increasing scale and complexity
Basin
Eustatic
Sedimentology
Stratigraphy
3. Systems Tract
A systems tract consists of genetically-related (time-equivalent)
depositional systems.
4. Types of Systems Tracts
Systems tracts are divided into four categories: falling-stage, lowstand,
transgressive, and highstand, depending upon their relationship to
relative base-level change.
LowstandHighstand
9. Hanging a Section
The stratigraphic succession of a basin can be “hung” on different
horizons to distinguish the impact of different depositional events.
10. Sequence Stratigraphy
A stratigraphic sequence consists of sediment deposited during a
single cycle of sea-level fluctuation and is identified, in part, by the
presence of systems tracts representing different phases of that cycle.
Clastic Sequence Carbonate Sequence