Opal a Wohuu Wɔ Mars So

September 2015 - Nsuo a Wɔhunuu Wɔ Mars So

Wɔ July afe 2015 mu no yɛtee fii NASA hɔ sɛ wɔahu Opal wɔ mars ani. Wɔn a wonim nea wɔde yɛ Opal no behu sɛ Opal yɛ silica ne nsu. Mprempren, asram 2 akyi no, NASA ada no adi sɛ nokwarem no, nsu a ɛsen wɔ okyinnsoromma yi ani.

Saa nokwasɛm a ɛyɛ sɛ Opal wɔ hɔ na nsu a ɛsen wɔ Mars ani no kyerɛ sɛ abɔde a nkwa wom nhyehyɛe bi a wonnim na ɛreyɛ adwuma. Wɔ asase so no, wɔtaa yɛ Opal wɔ asase ase nsu a ɛwɔ asase ase no anoano anaasɛ ɛbɛn Asubura a ɛyɛ hyew. Sɛnea NASA ka no, wogye di sɛ nsu no reforo afi asase ase nsu a nkyene pii wom mu. So ebetumi aba sɛ saa nsu a ɛwɔ nsu mu yi na ɛde mars Opal no fibea?

July 2015 - Wohuu Opal wɔ Mars so

NASA Mars Reconnaissance Orbiter no wɔ nea wogye di sɛ ɛyɛ silica a nsu wom wɔ okyinnsoromma Kɔkɔɔ no so ho mfonini. Wɔ Asase so no yenim silica sɛ fapem nneɛma a ɛka nsu ho de bɔ Opal no mu biako. Wɔ Asase so no, wɔde nsuo a ɛreworo so a ɛboaboa silica a ɛgyaw wɔ mpaapaemu ne baabi a ɛda hɔ kwa na ɛbɔ Black Opal . Bere a nsu no yɛ hyew wɔ mfe ɔpepem pii mu no ebetumi ayɛ Opal.

Nea wɔahu wɔ Mars so no aboa nhwehwɛmufo ma wɔate Australia Opal ase ankasa. Nsɛmmisa a ɛfa nea enti a Opal hyehyɛe wɔ bun a emu nnɔ saa mu bere a wɔde toto aboɔden abo afoforo a ɛsom bo ho ne nea enti a wotumi hu opal dodow no ara wɔ Australia nkutoo. Sɛnea Australia asase ho nsɛm kyerɛ bere a Australia po a ɛwɔ asase mu no fii ase san n’akyi bɛboro mfe ɔpepem 100 a atwam ni no, nea ɛyow no maa acid dodow a ɛwɔ bun a emu nnɔ mu no kɔɔ soro ma ɛmaa silica fi hɔ denam anhweatam a wim tebea asɛe no so. Wim tebea a ɛkɔɔ so no maa acid a ɛwɔ mu no so tew koduu baabi a Opal betumi ayɛ silica gel no. Saa wim tebea a ɛsakrae yi sii wɔ Australia mfinimfini nkutoo na ɛnyɛ baabi foforo biara. Eyi nyinaa ma nhwehwɛmu ahorow ka sɛ Australia mfinimfini kɔkɔɔ no betumi ayɛ nhwɛso a eye sen biara ama Mars ani.

Nea wohui wɔ orbiter no kyerɛ sɛ bere bi na nsu wɔ Mars so a asɛmmisa kɛse no ne sɛ anka ɛsɛ sɛ nsu no boa nkwa. Ɛde besi ha no, Opal a wohu wɔ Mars no ayɛ Opals a ɛnyɛ nea ɛsom bo a kɔla biara nhyerɛn. Opal a ɛwɔ Asase so nso ayɛ to known sɛ ɛyɛ adwuma pa de kora fossils, ebia Mars Opal bɛyɛ saa ara. Asɛmpa no ne sɛ ɛda adi sɛ nea ɔkyinkyin no bɛhwɛ beae yi yiye efisɛ nsu yɛ beae pa a wofi ase hwehwɛ nkwa, anidaso wom sɛ wobenya Mars Opal a ɛsom bo biako anaa abien.

OPAL A WƆHUU WƆ METEORITES PII A ƐFI MARS MU

Amansan no Aboɔden abo a Ɛho Hia a Wohu: NWA 7401

Meteorite bi a wɔntaa nhu na ɛyɛ nwonwa afi ahunmu atu kwan akɔ Asase so, na okura ahintasɛm ahorow fi akyirikyiri. Wɔfrɛ no NWA 7401, saa Enstatite chondrite EL-melt ɔbotan yi yɛ ɔsoro a ɛho yɛ na, na egyina hɔ ma meteorites a ɛhyɛ yɛn okyinnsoromma yi fɛ nyinaa mu 2% pɛ.

Bere a wɔayɛ nhwehwɛmu yiye na wɔde toto asase ne ahunmu gyinapɛn ahorow nyinaa ho denneennen akyi no, adiyisɛm bi a ɛyɛ nwonwa ba. NWA 7401 nyɛ meteorite biara kɛkɛ —ɛyɛ nhwɛsode a wim tebea asɛe kɛse a ɛda adi pefee sɛ ɛka ENSTATITE CHONDRITES, kuw bi a wɔyɛ atitiriw a ɛboro chondrite a ɛyɛ mpapahwekwa so no ho.

Sɛ yɛhwɛ sɛnea wɔahyehyɛ no a, yehu wiase ketewaa bi a ɛwɔ yɛn mu. Meteorite no yɛ matrix a orthopyroxene ne plagioclase a ɛto so abien titiriw na ɛwom, a aburow a ne kɛse te sɛ micron 100 na ɛwom. Wɔde ne amansan bere a atwam no nkae ahintaw wɔ mu—relic chondrules ne radial pyroxene crystals a ɛtrɛw te sɛ ɔsoro nsateaa. Troilite, daubréelite, ne kamacite de ka ne ntama a ɛyɛ den no ho, na ɛda adi sɛ aboɔden abo a ɛka ho.

Nanso ɛnyɛ ɛno nko ara. Saa aburow yi anoano ka nsakrae ho asɛm, a wɔde sulfates ne oxides, sɛnkyerɛnne a ɛkyerɛ sɛ wim tebea asɛe wɔ ahunmu tebea a emu yɛ den no asiesie so.

Saa nhwehwɛmu yi si so dua pefee sɛ meteorite no te: NWA 7401, aboɔden abo a ɛsom bo a efi amansan no kɛse no mu, a mprempren ɛyɛ yɛn Asase so nneɛma a yɛaboaboa ano no fã. Ɛnyɛ ɔbotan bi kɛkɛ; ɛyɛ amansan no nkaedum, na ɛma yetumi hu nsoromma no ahintasɛm kakra.

Wubetumi anya saa Meteorites yi mu biako denam kɔ ​​a wobɛkɔ NWA Meteorite category wɔ Gem Rock Auctions so