---
title: "Get Offshore Geochemical Data items"
method: GET
path: "/collections/offshore-sample-geochemical-data/items"
tags: ["offshore-sample-geochemical-data"]
---

# Get Offshore Geochemical Data items

`GET /collections/offshore-sample-geochemical-data/items`

This layer provides geochemical analysis associated with offshore sampling activities. It contains analysis of 38 elements and should be used as a baseline for chemical element concentrations in seabed sediments, against which samples collected in the future may be assessed. Related data in Offshore Sample Data - Activity & Scan collection.

## Query parameters

- `f` 'json' | 'html' | 'jsonld' | 'csv'
- `lang` 'en-US'
- `bbox` number[]
- `limit` integer
- `crs` string, uri
- `bbox-crs` string, uri
- `properties` string[]
- `vendorSpecificParameters` object
- `skipGeometry` boolean
- `offset` integer
- `geochemical_data_id` number
- `activity_id` number
- `sample_name` string
- `sample_alias` string
- `sample_source` string
- `client` string
- `contractor` string
- `equipment_type` string
- `epsg_code` integer
- `epsg` string
- `x` number
- `y` number
- `xy_source` string
- `x_ed50` number
- `y_ed50` number
- `x_wgs84` number
- `y_wgs84` number
- `x_bng` integer
- `y_bng` integer
- `depth_units` string
- `water_depth` number
- `depth_datum` string
- `depth_source` string
- `terminal_depth` number
- `analysis_source` string
- `li_ppm` number
- `be_ppm` number
- `b_ppm` number
- `mgo_per` number
- `al2o3_per` number
- `sio2_per` number
- `p_per` number
- `k2o_per` number
- `cao_per` number
- `sc_ppm` number
- `tio2_per` number
- `v_ppm` number
- `cr_ppm` number
- `mn_per` number
- `fe2o3_per` number
- `co_ppm` number
- `ni_ppm` number
- `cu_ppm` number
- `zn_ppm` number
- `ga_ppm` number
- `ge_ppm` number
- `rb_ppm` number
- `sr_ppm` number
- `y_ppm` number
- `zr_ppm` number
- `nb_ppm` number
- `mo_ppm` number
- `ag_ppm` number
- `cd_ppm` number
- `sn_ppm` number
- `ba_ppm` number
- `la_ppm` number
- `ce_ppm` number
- `nd_ppm` number
- `hg_ppm` number
- `pb_ppm` number
- `bi_ppm` number
- `u_ppm` number
- `confidentiality` string
- `accessuse_restric` string
- `terms_of_use` string
- `terms_of_use_url` string
- `equipment_start_date` string, date-time

## Parameters

- `https://raw.githubusercontent.com/opengeospatial/ogcapi-records/master/core/openapi/parameters/sortby.yaml` — unresolved $ref

## Other responses

- `200` — unresolved $ref
- `400` — unresolved $ref
- `404` — unresolved $ref
- `500` — unresolved $ref

---

[API](https://skmtc.dev/bgs/apis/opengeoscience-ogcapi.md) · [All operations](https://skmtc.dev/bgs/apis/opengeoscience-ogcapi/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/bgs/opengeoscience-ogcapi/revisions/98c98c759f90/schema)