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Field geologyFree

Geological Field Trips

Ready field excursions with verified stops: what crops out, what to measure, which fossils to look for, and the tools to use at each stop.

A field guide inside the system. Each trip has its stops on a map with their coordinates, the formations exposed with age and lithology, the structures to see, the measurements to take, the fossils that may be found and the safety notes, together with the stratigraphic column of everything seen on the trip. The phone’s position shows the nearest stop and its distance and bearing, and each stop opens the field companion, the stereonet or a ready cross-section line. The first trip runs from Baghdad to Sulaymaniyah by Kirkuk and back by Darbandikhan and the Diyala valley.

Geological Field Trips
123456Next stop · bearing3.2 km · 047°

Overview

Between Baghdad and Sulaymaniyah the road crosses, in a few hours, the whole succession of the Zagros foreland: the Pliocene conglomerates and Miocene red beds of the Hamrin and Chamchamal foothills, the Eocene limestone ridge of Darbandi Bazian that marks the edge of the High Folded Zone, and the Cretaceous limestones and flysch of the Azmir–Goizha anticline above the city. It is one of the best transects of a fold-and-thrust belt in the region.

The page, its figures and the field companion are kept on the phone after the first visit, so the guide works in the mountains without a network; only the background map tiles need a connection.

What you enter · What you get

What you enter

  • The trip
  • Your position (optional, from the phone)

What you get

  • Trip map with numbered stops
  • For each stop: formations, structures, measurements, fossils, safety
  • Stratigraphic column of the trip
  • Nearest stop, distance and bearing
  • Links to the measuring tools

How it works in the field

Choose the trip and read the stops before leaving
Open the page once online so it is kept for offline use
At each stop follow the measurements
Build the stereonet and cross-sections

Method and equations

Stops

Each stop is taken from published field studies and maps; positions given by the studies are used as they are, and positions estimated from towns or mountains are marked as approximate.

Distance and bearing

Great-circle distance and initial bearing from the phone’s position to each stop.

θ = atan2(sin Δλ cos φ₂, cos φ₁ sin φ₂ − sin φ₁ cos φ₂ cos Δλ)

Accuracy and error limits

  • Stop positions from the published studies are within tens of metres; those marked approximate may be one to a few kilometres from the best outcrop. Formation names and ages follow the studies cited; ages of some units in the Sulaymaniyah area are still debated, and the fossils listed are those reported or typical for each formation, not a guarantee of what will be found.
  • What is not covered: road conditions, access permissions and security, which change; private land, oil and dam installations; and the exact best outcrop at each stop.
  • To reduce the error: check each stop on the geological map of the Kirkuk and Sulaymaniyah quadrangles, ask local geologists or the universities of Sulaimani and Kirkuk about access, record your own position and photographs at each outcrop with the field companion, and correct the guide from what you see.

Who uses it

Geology students and their teachers on field coursesField geologists and survey teamsGeotourists and science communicators

Standards and references

  1. Jassim, S.Z. & Goff, J.C. (eds.) (2006). Geology of Iraq. Dolin, Prague and Moravian Museum, Brno.
  2. Sissakian, V.K., Abdul Jab’bar, M.F., Al-Ansari, N. & Knutsson, S. (2015). Neotectonic movements in Darbandi Bazian area, southwest of Sulaimaniyah city, NE Iraq. Iraqi Bulletin of Geology and Mining.
  3. Karim, K.H. et al. (2016). Surface analysis and critical review of the Darbandikhan (Khanaqin) fault, Kurdistan Region, Northeast Iraq.
  4. Lineament analysis of Sulaimani master plan area, Kurdistan Region, Iraq. Journal of Zankoy Sulaimani, Special Issue GeoKurdistan II (2016).
  5. Stratigraphic analysis of Azmir–Goizha anticline by nannofossils (Kurdistan Geology).
  6. Lateral growth of Qara Dagh anticline, south of Sulaimaniyah city, NE Iraq: a structural–geomorphological study.
  7. Wikipedia: Baba Gurgur; Darbandikhan Dam; Adhaim Dam; Hemrin Dam; Chamchamal (coordinates).
  8. Global Energy Monitor: Mansuriyah gas field (coordinates).
Results support professional judgement. They do not replace a licensed engineer’s or geologist’s sign-off.

At a glance

Category
Field geology
Runs on
Phone, tablet and desktop browser
Export
Trip map and stratigraphic column as PNG, JPG and PDF; stops as CSV, GeoJSON and KML; full PDF report
Access
Free

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