sand
Let an agent explain sand, relay classification, types, formation, uses, extraction impacts and health hazards from geology, UNEP and occupational health sources with debates attributed, describe the named types and flag unverified aliases, and distinguish sand from silt, gravel, soil and quicksand as a condition.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Understand What sand is.
Definition
Definition.
Definition
Definition.
- Is someone trapped in collapsed sand or a deep beach hole, in which case call emergency services and do not dig in a way that causes further collapse? boundary
- What is sand, and how does it differ from silt, gravel, soil and quicksand? definition
Types
Named types.
Types
Types.
- What are quartz, monazite, flying and oil sands, and what might Grovmo and Aqu-aqu refer to? definition
- Which entry fits the specific type? action
Geology Geology.
Formation
Formation.
Formation
Formation.
- How does weathering produce sand, and why is quartz so common? provenance
- Which references are standard? provenance
Dunes
Wind-blown sand.
Dunes
Dunes.
- How does wind move sand to form dunes? provenance
- Which sources are cited? provenance
Resources Use and extraction.
Extraction
Sand extraction.
Extraction
Extraction.
- What does UNEP report about sand extraction impacts on rivers and coasts, with figures attributed? provenance
- Is the information current? boundary
Uses
Uses.
Uses
Uses.
- Why is desert sand often unsuitable for concrete? provenance
- Which entry fits construction aggregate? action
Context Health and energy.
Silica
Silica dust.
Silica
Silica.
- How do exposure limits protect workers from crystalline silica? provenance
- Which entry fits silicosis? action
Oil sands
Oil sands debate.
Oil sands
Oil sands.
- What do industry, governments and environmental groups argue about oil sands, with positions attributed? provenance
- Is the presentation neutral and attributed? boundary
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- thing
- Plane
- PHY
- Domain
- PHY.OBJ
- Other names and narrower kinds
- oil sands, Grovmo, monazite sands, quartz sand, flying sand, Aqu-aqu, Rinazzu, ironsand, volcanic sand, white sand, cover sand, hydrophobic sand
What it is Filled
A granular material of rock and mineral particles between about 0.0625 and 2 millimetres in diameter, most commonly quartz sand from weathered silicate rocks, with other types such as coral and shell sands, black volcanic sands and heavy mineral monazite sands rich in thorium and rare earths, and flying or blowing sand moved by wind; oil sands are sand and clay deposits containing bitumen, as in Alberta. Sand is one of the most extracted materials on Earth for concrete, glass and land reclamation, and UNEP has warned of unsustainable sand extraction. Crystalline silica dust from cutting sand-based materials can cause silicosis, and the registry aliases Grovmo and Aqu-aqu could not be verified.
Why it exists Filled
Let an agent explain sand, relay classification, types, formation, uses, extraction impacts and health hazards from geology, UNEP and occupational health sources with debates attributed, describe the named types and flag unverified aliases, and distinguish sand from silt, gravel, soil and quicksand as a condition.
Distinguishing features Filled
- Grain size definition
- Quartz dominance
- Heavy global extraction
- Silica dust hazard
What robots and AI may and may not do Filled
Must not
- Assist in illegal sand mining or trade in unlicensed sand.
- Dig or allow deep holes in sand where they can collapse on people.
- Ignore silica dust controls where sand is cut, blasted or ground.
- Handle radioactive mineral sands without radiation safety authorisation.
Only with a human decision
- Approving extraction of sand from beaches, rivers or seabeds.
May
- Describe types of sand, their grain sizes and origins.
- Warn about collapse of deep holes in beach sand and dust from cutting sand-bearing materials.
Moral aspects Filled
- Sand extraction destroys rivers and coasts and is linked to organised crime.
- Silica dust causes lung disease in workers.
Who is affected
- Coastal and river communities
- Workers
- Ecosystems
Owners Filled
Steward
The landholder or the state for public beaches and riverbeds, under mining and environmental authorities.
Master systems
- Mining licence registers
Links to other meta-models Filled
parent
- Q1155083 - registry parent class
- Q12372934 - registry parent class
- Q2259909 - registry parent class
- Q3300024 - registry parent class
related
- clastic sediment - in registry terms
- concrete
- silicosis - as crystalline silica dust
- silt
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.sand
- Wikidata: Q34679 (https://www.wikidata.org/wiki/Q34679)
Direct properties required Filled
- grain size: 0.0625-2 mm - Wentworth scale
- global sand and gravel use: about 50 billion tonnes a year note - UNEP estimate, check current
- main mineral: quartz note
Recognition required Filled
- Granular sediment of 0.0625-2 mm particles
- Oil sands, Grovmo, monazite sands, quartz sand, flying sand, Aqu-aqu
- Silt is finer; gravel is coarser; soil contains organic matter; quicksand is saturated sand that loses strength
- Loose grains in colours from white and golden to black, pink or green, forming beaches, dunes and riverbeds.
Capabilities and actions required Filled
- explain grain size and types
- relay uses and extraction impacts
- describe named types
- relay silica dust hazards
Hazards and failure modes required Filled
- Silicosis from dust
- Illegal sand mining damage
- Beach sand hole collapses
Standards and interfaces required Filled
- Occupational exposure limits for respirable crystalline silica
- Sand mining permits and river protection laws
- Radiation rules for monazite handling
Context of use required Filled
- Construction, glassmaking, industry and landscapes.
- quartz sand
- carbonate sands
- volcanic sands
- heavy mineral sands
- aeolian or flying sand
- oil sands
Sources Filled
- Wikidata item Q34679: sand - identity and sense of the item
- Wikipedia: Sand - general description of the item
Open questions
- The registry aliases Grovmo and Aqu-aqu could not be verified and should be reviewed
- Should oil sands be moved to petroleum entries?
- How should UNEP sand reports be linked?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q34679/spec.json