Geologist

Geologist maintains records and this page includes 20 real tasks that explain how documentation is done in practice. Expect notes on formats, timing, and how ESRI ArcGIS can speed the work. Each one shows where we found it, and comes with an AI prompt you can copy and use straight away.

20evidenced tasks
20ready prompts
6tools of the trade
19-2042.00O*NET-SOC code
23,470hold this job (US, BLS 2025)
$101,920median pay/yr (US)
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What it pays

Government survey numbers — not estimates, not ads.

Half of all Geoscientists, Except Hydrologists and Geographers in the U.S. earn more than $101,920 a year — the middle 80% land between $59,330 and $200,230. About 23,470 people in the U.S. do this work. Figures are for the U.S. occupation group “Geoscientists, Except Hydrologists and Geographers”. (U.S. Bureau of Labor Statistics survey, published 2025.) In India, Professionals earn about ₹38,298 a month on average — around ₹4.6 lakh a year (government PLFS survey via ILOSTAT, occupation-family figure).
$101,920typical pay / year
23,470people in this work
$200,230+top 10% earn
₹4.6 lakha year in India (family avg)
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The work, task by task

These are the real jobs-to-be-done, not a wish list. Each task shows where we found it, and the prompt underneath is written for that exact task.

The daily work18

Plan or conduct surveys and sampling programs

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Plan a two-week field survey to collect stratigraphic logs, vadose-zone moisture, and three rounds of water…
Plan a two-week field survey to collect stratigraphic logs, vadose-zone moisture, and three rounds of water samples across the proposed remediation site: define borehole locations, sample protocols, QA/QC, chain‑of‑custody, and the lab analysis list for approval by the project manager.
The tools that do the workMicrosoft ProjectESRI ArcGISjob descriptionsO*NET

Design geological mine maps, monitor mine structural integrity, or advise and monitor mining crews.

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Design detailed mine maps showing ore bodies, haul routes, support pillars and water drains, then set up a…
Design detailed mine maps showing ore bodies, haul routes, support pillars and water drains, then set up a weekly structural monitoring checklist and assign on‑site crew inspections for the next three months, flagging any deformation trends above safety thresholds.
The tools that do the workAutodesk AutoCADO*NET
km/h RPM

Measure characteristics of the Earth, such as gravity or magnetic fields, using equipment such as seismographs, gravimeters, torsion balances, or magnetometers.

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Plan and log a field survey to measure gravity and magnetic anomalies over the prospect: list station…
Plan and log a field survey to measure gravity and magnetic anomalies over the prospect: list station locations, instrument calibration checks, expected reading precision, and a data QA schedule so the field techs know when to repeat suspicious stations.
The tools that do the workMicrosoft ExcelO*NET

Review environmental, historical, or technical reports and publications for accuracy.

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Review the draft environmental and technical reports for the Ridgewell project for data consistency,…
Review the draft environmental and technical reports for the Ridgewell project for data consistency, incorrect unit conversions, unsupported claims, and missing raw data references, then annotate pages requiring verification and request corrected figures from the lead author by Friday.
The tools that do the workAdobe AcrobatO*NET

Provide advice on the safe siting of new nuclear reactor projects or methods of nuclear waste management.

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Assess proposed reactor site geology and waste repository plans: evaluate seismic hazard, groundwater flow…
Assess proposed reactor site geology and waste repository plans: evaluate seismic hazard, groundwater flow paths, and rock permeability, then recommend buffer distances and monitoring boreholes and provide a short memo for the project engineers before the regulatory submission date.
The tools that do the workESRI ArcGISO*NET

Review work plans to determine the effectiveness of activities for mitigating soil or groundwater contamination.

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Examine the work plan for the Brownfield remediation and judge whether trenching, containment and…
Examine the work plan for the Brownfield remediation and judge whether trenching, containment and pump‑and‑treat steps will reduce soil and groundwater contaminants to target levels; mark where additional monitoring wells or alternative remedies are needed and summarise concerns for the client.
The tools that do the workMicrosoft ExcelO*NET

Study historical climate change indicators found in locations, such as ice sheets or rock formations to develop climate change models.

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Compile palaeoclimate proxies from the ice core and stratigraphic logs, check their dating controls and…
Compile palaeoclimate proxies from the ice core and stratigraphic logs, check their dating controls and sampling resolution, then run a basic statistical correlation to test whether the local signals support the regional climate model and write a short methods note.
The tools that do the workGitO*NET

Determine ways to mitigate the negative consequences of mineral dust dispersion.

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Assess current mineral dust sources around the quarry and nearby towns, model particle transport under…
Assess current mineral dust sources around the quarry and nearby towns, model particle transport under seasonal winds, propose three targeted mitigation measures (engineering controls, vegetation barriers, operational limits) with cost and monitoring plans by next Wednesday.
The tools that do the workESRI ArcGISO*NET

Identify deposits of construction materials suitable for use as concrete aggregates, road fill, or other applications.

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Survey mapped sedimentary outcrops and recent pit logs within the county, screen lithology and grain-size…
Survey mapped sedimentary outcrops and recent pit logs within the county, screen lithology and grain-size data to shortlist beds suitable for concrete aggregate or road fill, and produce a ranked report with sample test results and access constraints by Friday.
The tools that do the workESRI ArcGISO*NET

Identify new sources of platinum group elements for industrial applications, such as automotive fuel cells or pollution abatement systems.

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Re-examine ultramafic and layered mafic intrusions in the regional database, integrate geochemical assays and…
Re-examine ultramafic and layered mafic intrusions in the regional database, integrate geochemical assays and structural controls to pick three high-priority targets for platinum-group element sampling, and outline a field verification plan within two weeks.
The tools that do the workESRI ArcGISO*NET

Locate potential sources of geothermal energy.

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Combine heat-flow measurements, shallow seismic and hydrothermal alteration maps to map high-potential…
Combine heat-flow measurements, shallow seismic and hydrothermal alteration maps to map high-potential geothermal corridors, prioritise three sites for temperature-gradient drilling, and deliver a short feasibility note with risks and permit issues in ten days.
The tools that do the workESRI ArcGISO*NET

Research ways to reduce the ecological footprint of increasingly prevalent megacities.

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Analyze urban geology, groundwater recharge, and local material cycles in the metropolitan footprint,…
Analyze urban geology, groundwater recharge, and local material cycles in the metropolitan footprint, identify five practical measures (green infrastructure, local materials, reduced transport emissions, subsurface stormwater capture, dust control) with implementation steps and one-year monitoring metrics.
The tools that do the workESRI ArcGISO*NET

Sample collection and drilling for data

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Plan a three-day field campaign: list borehole locations targeting stratigraphic and geotechnical objectives,…
Plan a three-day field campaign: list borehole locations targeting stratigraphic and geotechnical objectives, specify core sizes, downhole logging and sample protocols, safety and permitting checklist, and a sample chain-of-custody form before mobilising crews next Monday.
The tools that do the workMicrosoft Exceljob descriptions

Classify soils, minerals, rocks, or fossils

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Classify the grab samples from Borehole B12 and the surface outcrop at North Ridge into soil, mineral, rock,…
Classify the grab samples from Borehole B12 and the surface outcrop at North Ridge into soil, mineral, rock, or fossil categories, record grain size, matrix, and weathering notes, attach photos and the microscope scan results, then flag any ambiguous specimens for thin-section analysis by Thursday.
The tools that do the workMicrosoft ExcelAdobe Acrobatjob descriptions

Plan and develop how water can be supplied to cities and urban areas

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Design a preliminary urban water supply layout for the Westside development using the existing borehole…
Design a preliminary urban water supply layout for the Westside development using the existing borehole inventory, map elevations, and recharge areas, size main conveyance routes and storage requirements, then produce a one-page rationale and cost sensitivity for the city engineering review on Monday.
The tools that do the workESRI ArcGISMicrosoft ExcelESCO

Develop water purification methods

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Draft and test three candidate water purification workflows for the village supply using turbidity, nitrate…
Draft and test three candidate water purification workflows for the village supply using turbidity, nitrate and bacterial counts from the March sampling campaign, estimate removal efficiencies, materials needed and operating costs, then recommend one treatment train and a pilot schedule for next quarter.
The tools that do the workMicrosoft ExcelESCOsee the evidence ↗

Operate scientific measuring equipment

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Calibrate and operate the field conductivity, turbidity and pH meters at Pumping Station 4, log instrument…
Calibrate and operate the field conductivity, turbidity and pH meters at Pumping Station 4, log instrument serial numbers, calibration curves, timestamps and QA checks, upload the validated measurement spreadsheet and photo evidence to the project folder before handing over to lab for microbial analysis.
The tools that do the workMicrosoft ExcelESCOsee the evidence ↗

Scientific modelling

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Build a groundwater flow model for the eastern aquifer using the March hydrograph data, well heads, hydraulic…
Build a groundwater flow model for the eastern aquifer using the March hydrograph data, well heads, hydraulic conductivity estimates and recharge rates, run steady-state and two transient scenarios, then summarise predicted drawdown and contamination plume migration for the regulators.
The tools that do the workGitMicrosoft ExcelESCOsee the evidence ↗
Keeping the record2
SOIL

Examine soils, minerals, rocks, or fossil remains

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Describe a targeted lab and field testing program to characterise mineralogy, grain size, and porosity of the…
Describe a targeted lab and field testing program to characterise mineralogy, grain size, and porosity of the hillside outcrops at Tranquil Ridge, list required instruments and sample numbers, and provide an evidence-based interpretation of likely permeability ranges.
The tools that do the workAdobe AcrobatESCOjob descriptions

Identify risks for natural disasters like earthquakes or mudslides

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Compile a rapid hazard assessment identifying slopes with high liquefaction, landslide, or rockfall potential…
Compile a rapid hazard assessment identifying slopes with high liquefaction, landslide, or rockfall potential for the coastal corridor after last week’s storm—use recent aerial imagery, slope data, and mapped faults, rank sites by risk to the highway and provide emergency monitoring recommendations.
The tools that do the workESRI ArcGISMicrosoft Exceljob descriptionsO*NET

Says who?

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Activities this job lives in

The human activities behind the tasks — each with its honest AI ceiling.

The logs, files & records this job keeps

Shared with other careers — the same record means something different in each.

Related careers

Same family of work — each with its own tasks and prompts.

The LLOS Work Atlas is the world's largest evidenced task library — a map of human work, with a ready prompt behind every task. 1,774 careers · every task named by the sources that witnessed it — O*NET, ESCO, real job descriptions, Wikipedia — and the deepest tasks by several at once. And it is honest about limits: where AI cannot help, the map says so.

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