Novo Cruzeiro 현장 작업 사진

리튬 탐사에서 페그마타이트가 중요한 이유

당사 지질학자들은 스포듀민을 찾고 있습니다. 이는 페그마타이트에서 발견되는 리튬 함유 광물입니다. 페그마타이트는 화강암과 편암(열과 압력으로 형성된 층상 암석)을 관입하는 밝고 흔히 흰색인 암석입니다. 가장 관찰하기 좋은 곳은 암석 노두와 오래된 영세 수작업 광산이며, 이 광산에서는 광맥이 지하로 이어집니다.

리튬을 찾으려면 먼저 스포듀민을 찾아야 하며, 이는 페그마타이트에서 시작됩니다. 이것이 바로 당사 현장팀이 Atlantico의 Novo Cruzeiro 프로젝트 전역에서 지질도 작성하고 시료를 채취하는 대상입니다.

페그마타이트 찾아보기

배운 내용을 적용해 보십시오. 첫 두 장의 사진에서 영세 수작업 갱도 내의 대규모 백색 페그마타이트 암체를 살펴보십시오. 세 번째 사진은 편암 내의 더 얇고 중첩된 띠를 보여주며, 네 번째는 지표에 노출된 풍화 페그마타이트로, 여전히 시료를 채취할 가치가 있습니다.

Pegmatite vein exposure with internal banding

Pegmatite vein exposed against schist in gallery wall

Banded pegmatitic vein with quartz, feldspar, and biotite layers

Deeply weathered pegmatite with clay-rich and iron-stained zones

UV 조명 아래의 페그마타이트

여러 영세 수작업 갱도 내부의 지하에서 페그마타이트 맥을 관찰할 수 있습니다. 지질학자들은 UV 조명을 사용해 형광 특성이 리튬 부화 구간과 일치할 수 있는 부성분 광물을 부각합니다.

Orange fluorescence on pegmatite under UV light

Blue-green fluorescence on pegmatitic sample under UV light

UV light on pegmatite surface showing faint orange fluorescence

Multicolour fluorescence on pegmatite under UV light

Blue fluorescence highlighting possible quartz-rich zones.

Blue-green fluorescence on pegmatite under UV light

영세 수작업 광산에서의 발견

과거에 수작업으로 굴착한 갱도는 페그마타이트 맥을 따라 지표까지 이어졌습니다. 당사에 이러한 노출부는 지질도 작성, 시료 채취 및 초기 지질학적 해석의 방향을 설정하는 데 유용한 현장 관찰 자료입니다.

Artisanal tunnel within weathered rock at Novo Cruzeiro.

Entrance to artisanal working in weathered pegmatite

Atlantico field geologist collecting samples from an artisanal tunnel exposure at Novo Cruzeiro.

Pink saprolite exposure with biotite and tourmaline textures

Six-metre artisanal excavation exposing a lenticular pegmatite vein.

소형 수공 갱의 입구에서의 필드 지질학자

도로변 노두에 노출된 수작업 광산 입구

Geologist examining a small artisanal tunnel developed in weathered granitic rock.

손전등으로 비춰진 수공 갤러리 내부

Shallow mine entrance with oxidized pegmatitic material

Hand-dug subsurface gallery exposing a pegmatitic zone within weathered host rock at Novo Cruzeiro.

Geologist examining weathered pegmatite at mine entrance

편암 호스트 암석 내에 페그마타이트 광맥이 노출된 모습, 수공 예술 갤러리 내에서 발견.

Pegmatite vein exposed against schist in gallery wall

Pegmatite vein parallel to foliation in schist.

Rust-stained pegmatite wall inside an artisanal excavation

Pegmatite vein cutting schist exposed within a gallery.

Rust-colored bands in a weathered pegmatitic wall within a shallow excavation.

Crosscutting pegmatite vein in gallery wall

Hand sample from pegmatite vein in gallery

Pegmatite vein exposure with internal banding

Pegmatite and schist contact showing textural contrast

Pink saprolite in gallery with biotite and tourmaline patches

UV light showing bright blue fluorescence in a weathered quartz-rich sample.

Layered pegmatitic vein with quartz-feldspar and mica bands

Pink saprolite with tourmaline and biotite traces

편암 평행 방향으로 노출된 미세한 페그마타이트 광맥

Light-colored clay-altered pegmatite exposed near artisanal workings.

Banding in weathered pegmatitic material inside an artisanal mine

Folded, weathered pegmatitic layering in an artisanal mine

Banded pegmatitic vein with quartz, feldspar, and biotite layers

Cluster of shallow artisanal diggings along a weathered hillside in Novo Cruzeiro.

Collapsed artisanal adit opening on forested slopes at Novo Cruzeiro.

Collapsed artisanal tunnel with pale clay-rich material at the entrance.

Collapsed artisanal tunnel with weathered clay-rich walls near the entrance.

Collapsed artisanal working exposing soft, clay-rich saprolite at Novo Cruzeiro.

Deep, narrow artisanal working in weathered rock near Novo Cruzeiro.

Geologist examines an overgrown artisanal tunnel entrance in the Novo Cruzeiro hills.

Narrow artisanal shaft opening in weathered terrain.

Narrow artisanal tunnel in reddish saprolite at Novo Cruzeiro.

Shallow collapsed entrance of an artisanal working in reddish saprolite.

Steep, narrow tunnel entrance cut by artisanal miners into the Novo Cruzeiro hillside.

Twin artisanal tunnel openings within the Novo Cruzeiro project area.

Vegetation-covered artisanal tunnel concealed within the Novo Cruzeiro hillside.

Weathered face with white clay and feldspar textures

Well-preserved artisanal mine entrance cut into a weathered hillside at Novo Cruzeiro.

Wide artisanal tunnel through reddish-brown saprolite.

페그마타이트 및 페그마토이드 암체

페그마타이트에는 스포듀민이 배태될 수 있으며, 이에 따라 리튬도 부존할 수 있습니다. 당사는 최적 구역을 향한 탐사 방향을 설정하기 위해 두께, 연속성, 방향성을 지질도 작성한 후 분석 결과로 확인합니다.

Bagged pegmatite samples with coarse biotite, quartz, and feldspar fragments.

Collected pegmatite samples showing coarse mica, quartz, and feldspar fragments.

Dark pegmatite mineral fragments collected from surface exposures.

Close-up of weathered pegmatitic rock with pink feldspar and milky quartz.

Coarse-grained pegmatitic rock with quartz, feldspar, and red garnet crystals.

Contact between dark biotite-rich granite and light pegmatitic material, with hammer for scale.

Deeply weathered pegmatite with clay-rich and iron-stained zones

Field geologist examining oxidized pegmatite with quartz-feldspar banding

Gently dipping outcrop with a light-coloured vein in darker biotite-rich host rock.

Geologist sampling an oxidized saprolite exposure with pale veins

Close view highlighting dark tourmaline clusters within an iron-stained pegmatitic matrix. The red-brown kaolinized textures reflect intense tropical weathering of an originally quartz-feldspar-tourmaline assemblage — typical of lithium-fertile granitic pegmatites. — Hammer-scale view of weathered pegmatite with dark tourmaline and iron-stained zones.

Oxidized exposure showing a banded pegmatitic vein with quartz, feldspar, and muscovite.

Panoramic view of a large weathered pegmatitic exposure within an old open-pit cut.

Pegmatitic vein exposure with quartz-feldspar bands and iron-stained weathering, hammer for scale.

Prominent light-toned pegmatite vein cutting darker country rock along a vertical roadcut face.

Quartz and pegmatite veins in oxidized weathered rock

Quartz vein in weathered granitic wall rock, Novo Cruzeiro area.

Red saprolite exposure with pale weathered pegmatite zones

Weathered exposure showing pegmatite and schist with iron staining and tourmaline relics.

Weathered pegmatite with quartz, feldspar, and iron staining

Weathered pegmatitic face with iron staining and quartz-rich zones in outcrop.

석영, 비스무트, 투르말린을 포함한 페그마토이드 광맥

풍화된 페그마타이트 화강암 사프롤라이트 노출

하천수 및 퇴적물 시료

하천은 상류의 지구화학적 신호를 운반합니다. Li의 이상치( Cs, Rb, Ta 동반)는 유력한 페그마타이트 기원지를 역추적하는 데 도움이 됩니다.

Granite bedrock exposure along a cascading stream near Novo Cruzeiro.

Field geologist collecting a stream sediment sample below a waterfall cutting through granitic bedrock.

Shaded creek with moss-covered boulders cutting through the forest floor.

작은 폭포가 있는 노출된 화강암 돔을 가로지르는 시내.

Stream descending over weathered granite steps within a forest channel.

Geologist inspecting an oxidized drainage channel where surface water interacts with exposed granitic bedrock.

Waterfall exposing granitic bedrock along a forested stream channel.

Field geologist standing beside a shallow oxidized drainage channel cutting through exposed granitic bedrock.

Stream flowing over weathered granite with orange-brown staining.

Small pond beside a weathered red-soil slope near an access trail.

Small drainage channel used for stream sediment sampling in dense forest at Novo Cruzeiro.

Stream channel over weathered granitic bedrock with iron staining and hammer for scale.

Streamside granitic outcrop beside active surface drainage.

Exposed granite dome with shallow drainage and saprolitic weathering at the base.

Exposed granitic bedrock along a shallow creek channel, showing fracture-controlled weathering and sediment transport.

Geologist collecting stream sediment samples from a shallow creek cutting through granitic terrain at Novo Cruzeiro.

Shallow creek flowing over exposed granitic bedrock, suitable for sediment and structural observation.

Stream sediment sample NCZ-SS-0001 collected from a small drainage at Novo Cruzeiro.

Waterfall cutting through granitic basement rock in the Novo Cruzeiro region.

Waterfall partly obscured by forest vegetation along a shaded drainage.

화강암계 및 모암

화강암질 마그마가 진화함에 따라 후기 유체가 페그마타이트를 형성합니다. 이러한 유체 이동 체계와광화 잠재력을 이해하면 가장 큰 암체가 나타날 수 있는 위치를 예측할 수 있습니다.

Broad granite dome exposure overlooking forested slopes in the Novo Cruzeiro region.

Expansive granitic exposure on a weathered bedrock high near Novo Cruzeiro.

Geologist examining a broad weathered granite exposure with faint pale banding.

미세한 교차하는 페그마타이트 광맥이 있는 중간 동등 결정 화강암

Porphyritic granite with flow fabric and fine pegmatite veins

바이오타이트 방향성이 있는 거친 동등 결정의 백색 화강암

Granitic outcrop exposure showing subtle mineral banding.

Geologist examining a foliated outcrop with dark biotite-rich bands and surface weathering.

Isolated granitic boulders and domal outcrops across gentle hills

Geologist examining a prominent granite outcrop with light-coloured veins in rolling terrain.

Field geologist examining weathered granite with surface cavities and vegetation cover.

Granite block with multiple fine pegmatite veins

Geologist examining foliated granitic rock with dark and light bands.

Weathered granite outcrop showing sheet-like exfoliation and faint pale vein traces.

Field geologist examining a coarse-grained granite boulder with visible feldspar and quartz.

Fresh coarse-grained granite with feldspar and quartz crystals

Granitic hand sample with quartz-feldspar intergrowths and iron staining.

Coarse-grained granite with thin pegmatite veinlets

Coarse-grained granite with fine garnet grains

Coarse-grained granite with quartz, feldspar, and biotite shown beside a pencil tip.

Coarse-grained granite sample showing feldspar, quartz, biotite, and minor weathering.

Coarse-grained leucogranite with quartz and feldspar

Garnet-bearing granite with coarse quartz, feldspar, and biotite texture.

Hand sample of coarse-grained granite displaying feldspar-rich texture with minor biotite and iron-oxide staining.

Granite exposure with coarse feldspar, quartz, and biotite minerals.

Medium- to coarse-grained granite with visible feldspar, quartz, and biotite.

Freshly exposed granitic surface showing coarse intergrowth of feldspar, quartz, and biotite.

Granitic outcrop showing coarse feldspar and quartz textures exposed at surface, with a rock hammer for scale.

Coarse-grained granite with quartz, feldspar, and dark accessory crystals.

Oxidized granitic outcrop showing iron-stained surface weathering over coarse feldspar and quartz textures.

Granitic outcrop with dark biotite-rich foliation and light quartz-feldspar veinlets.

Coarse-grained granitic outcrop with visible quartz and feldspar.

Weathered granitic outcrop with coarse feldspar crystals

미세한 알갱이의 장석이 풍부한 화강암의 클로즈업, 초기 풍화와 광물 분리가 보임.

어두운 바이오타이트-석영 기초와 함께 장석 결정이 보이는 거친 석영 화강암.

Fine- to medium-grained granitic exposure showing dark biotite-rich layering and light felsic mineral bands.

Granite outcrop with aligned feldspar crystals and a field hammer for scale.

Outcrop of dark biotite-rich granite showing foliation and compositional banding.

Porphyritic granite exposure with aligned feldspar phenocrysts, hammer for scale.

Rock hammer on a darkened granitic outcrop showing fracture-controlled oxidation and light surface water flow.

사프로라이트 및 변질대

열대 풍화 작용은 사프로라이트를 형성하여 경암 페그마타이트를 가릴 수 있지만, 지질도 작성의 지표가 되는 색상/조직 대비를 뚜렷하게 만들기도 합니다.

High saprolite wall with pink, tan, and cream weathering zones

Geologist sampling reddish-brown residual soil over weathered schist

Geologist sampling a weathered saprolitic exposure showing alternating kaolinite-rich and oxidized bands derived from granitic bedrock.

Roadcut exposure of pink to red saprolitic material in weathered granitic terrain.

Eroded roadcut showing thick saprolitic cover over granitic rock.

Geologist collecting samples from a red clay-rich weathered roadcut.

Red lateritic access road through weathered terrain with small drainage ponds nearby.

Field geologist sampling red-brown lateritic saprolite at Novo Cruzeiro.

Geologist examining a kaolinite-rich saprolitic exposure with distinct bleaching and oxidation zones derived from granitic weathering.

Roadcut exposure with red oxidized saprolite in weathered granitic terrain.

Geologists collecting saprolite samples from a weathered granitic outcrop.

Geologist examining a weathered outcrop with reddish and pale clay-rich zones.

Field examination of a weathered outcrop with iron-rich bands

Roadside exposure of weathered granitic saprolite with pink to red oxidation zones.

Kaolinized granitic saprolite with quartz-rich zones and iron staining.

Yellow-grey saprolite with relict foliation and rock hammer scale

Exposed saprolite face with pink, orange, and pale-yellow weathering bands.

Roadcut exposure of weathered saprolitic material overlying granitic to pegmatitic bedrock.

표면 덮개 아래의 화강암–페그마타이트 사프롤라이트 노출

Weathered granite blocks in red saprolitic clay

Weathered outcrop with vertical oxidation bands and clay-rich zones

Roadcut exposure showing deeply weathered pink to red saprolite.

Vertical saprolite wall with pink, yellow, and white weathering zones.

Field sample collected from an oxidized saprolite horizon at Novo Cruzeiro.

Labeled sample bag with kaolinized saprolite from a weathered granitic exposure.

Atlantico field sample NCZ-CR-0001 beside a kaolinized saprolite roadcut.

Field sample NCZ-CR-0004 from weathered granitic saprolite

Fine-grained pale saprolite with kaolinized texture, photographed with a pencil for scale.

Weathered hillside exposure with clay-rich saprolite and embedded coarse rock fragments at Novo Cruzeiro.

Clay-altered saprolite with iron-oxide staining and relict pegmatitic texture.

Close-up of oxidized saprolite with relict granitic textures

Close-up of saprolitic weathering with granular granitic fabric

Dark band exposed within weathered saprolitic material, showing remnant quartz and biotite-rich textures.

Deeply weathered roadcut with layered saprolitic soil over granitic bedrock.

Field hammer beside an iron-stained weathered outcrop with clay-rich zones.

Fine-grained lateritic saprolite with clay-rich matrix and iron oxide mottling.

Iron-oxidized outcrop with clay-rich material and quartz-feldspar textures

Iron-stained saprolite with mottled red and yellow-brown weathering textures.

Iron-stained weathered exposure along a vegetated slope.

Kaolinized and iron-stained saprolite with pink to yellow banding.

Kaolinized and iron-stained saprolite with quartz-feldspar banding

Kaolinized saprolite horizon with pink and white weathering bands.

Kaolinized, iron-stained saprolite with remnant feldspar textures.

Pale kaolinitic layer exposed beneath red-brown lateritic soil.

Pinkish-weathered granitic saprolite with quartz and feldspar relicts

Red-weathered granitic exposure with quartz-rich veinlets and hammer for scale.

붉은색 사프롤리틱 프로필로, 철이 풍부한 변질 지평선과 잔여 점토 형성이 보입니다.

Roadcut exposure of deeply weathered saprolite over granitic rock.

Roadcut exposure of pink to reddish saprolite in weathered granitic rock.

Sharp contact between pale granitic saprolite and red laterite

Vertical roadcut exposure showing kaolinized saprolite with quartz-rich bands and ferruginous staining.

Vertical roadcut showing deeply weathered granitic saprolite with visible textural relics of the parent rock.

Vertical saprolite exposure showing pale and iron-stained weathering layers.

Weathered exposure with red-brown saprolite, pale clay-rich material, and quartz fragments.

Weathered granitic outcrop with kaolinized zones and quartz-feldspar remnants

Weathered granitic saprolite with bleached feldspar and iron staining

Weathered granitic saprolite with bleached feldspar and iron staining

Weathered roadcut with oxidized saprolite and preserved granitic texture.

Weathered saprolite with red and beige clay-rich zones exposed along a roadcut.

Banded weathering pattern in granitic saprolite

Pink schist saprolite with quartz-feldspar veins

Quartz vein exposed in granitic soil

Whitened granitic saprolite with feldspar weathering

Yellow-reddish weathered saprolite horizon