TE
科技回声
首页24小时热榜最新最佳问答展示工作
GitHubTwitter
首页

科技回声

基于 Next.js 构建的科技新闻平台,提供全球科技新闻和讨论内容。

GitHubTwitter

首页

首页最新最佳问答展示工作

资源链接

HackerNews API原版 HackerNewsNext.js

© 2025 科技回声. 版权所有。

USGS uses machine learning to show large lithium potential in Arkansas

337 点作者 antidnan7 个月前

21 条评论

folli7 个月前
From the paper&#x27;s method section, a bit more about which type of ML algo was used:<p>An RF machine-learning model was developed to predict lithium concentrations in Smackover Formation brines throughout southern Arkansas. The model was developed by (i) assigning explanatory variables to brine samples collected at wells, (ii) tuning the RF model to make predictions at wells and assess model performance, (iii) mapping spatially continuous predictions of lithium concentrations across the Reynolds oolite unit of the Smackover Formation in southern Arkansas, and (iv) inspecting the model for explanatory variable importance and influence. Initial model tuning used the tidymodels framework (52) in R (53) to test XGBoost, K-nearest neighbors, and RF algorithms; RF models consistently had higher accuracy and lower bias, so they were used to train the final model and predict lithium.<p>Explanatory variables used to tune the RF model included geologic, geochemical, and temperature information for Jurassic and Cretaceous units. The geologic framework of the model domain is expected to influence brine chemistry both spatially and with depth. Explanatory variables used to train the RF model must be mapped across the model domain to create spatially continuous predictions of lithium. Thus, spatially continuous subsurface geologic information is key, although these digital resources are often difficult to acquire.<p>Interesting to me that RF performed better the XGBoost, would have expected at least a similar outcome if tuned correctly.
评论 #41919565 未加载
评论 #41924440 未加载
评论 #41918858 未加载
评论 #41918303 未加载
评论 #41918430 未加载
评论 #41921426 未加载
Animats7 个月前
There&#x27;s also a big lithium deposit in Nevada, and preparations for mining are underway there.[1] General Motors put in $650 million for guaranteed access to the output of this Thacker Mine.<p>It&#x27;s in a caldera in a mountain that I-80 bypassed to go through Winnemuca, Nevada. Nearest town is Mill City, NV, which is listed as a ghost town, despite being next to I-80 and a main line railroad track. The mine site is about 12km from Mill City on a dirt road not tracked by Google Street View.<p>Google Earth shows signs of development near Mill City. Looks like a trailer park and a truck stop. The road to the mine looks freshly graded. Nothing at the mine site yet.<p>It&#x27;s a good place for a mine. There are no neighbors for at least 10km, but within 15km, there&#x27;s good road and rail access.<p>[1] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Thacker_Pass_lithium_mine" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Thacker_Pass_lithium_mine</a>
评论 #41921563 未加载
评论 #41919099 未加载
_heimdall7 个月前
Well I guess this is a good win for short term energy infrastructure, though I&#x27;m always pretty torn when its at the cost of ripping open huge swaths of earth to get at the raw material.<p>It is interesting to see how much of this data could be modelled based on wastewater brines from other industries in the area, assuming we go on to mine the lithium it will say a lot if the ML predictions prove accurate.<p>One thing I couldn&#x27;t tell, and its probably just a limitation of how much time I could spend reading the source paper, is what method would be needed to extract the bulk of the lithium expected to be there. If processing brine water is sufficient that may be easier to control externalities than if they have to strip mine and get all the overburden out of the way first.
评论 #41922599 未加载
评论 #41919627 未加载
评论 #41920208 未加载
sidewndr467 个月前
Is lithium even rare enough to matter? I&#x27;ve read that the Salton sea may contain enough lithium to supply years of demand anyways. From my observation, it isn&#x27;t the presence of lithium that matters. It&#x27;s how to cheaply exploit it into a commercial product. For most purposes this just boils down to &quot;mine it somewhere without environmental regulations&quot;
rmm7 个月前
Work in this industry (hard rock mining).<p>Lithium supply is not an issue. Here in oz we have plenty, there is surplus in market (see current lithium prices).<p>Conversion however is an issue, majority of plants are in China. Build some refiners that turn it into lithium carbonate and oz will fill them.
评论 #41919857 未加载
greenie_beans7 个月前
ugh i really don&#x27;t want people to mine in the mobile basin. that&#x27;s one of the most diverse ecosystems in north america. <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=8j9coyJeB4Q" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=8j9coyJeB4Q</a>
评论 #41918194 未加载
评论 #41918200 未加载
评论 #41918625 未加载
评论 #41919213 未加载
评论 #41918738 未加载
tommykins7 个月前
Ah spatial autocorrelation, my old friend.<p>Very good work - but typically we don&#x27;t build prospectivity models this way (or rather we don&#x27;t validate them this way anymore). Great to see the USGS starting to dip their toe back in this though, they and the GSC were long the leaders in this, but have dropped it on the last 5-7 years.
idontwantthis7 个月前
Say Lithium becomes essentially free because we find so much of it…would that drastically lower battery costs? Is our current supply of lithium limiting production?
评论 #41917845 未加载
评论 #41917814 未加载
评论 #41923609 未加载
评论 #41918023 未加载
评论 #41918217 未加载
评论 #41918518 未加载
nubinetwork7 个月前
Related<p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=41910918">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=41910918</a><p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=41907144">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=41907144</a>
TheThirstyGeo7 个月前
Similar work done in Canada: <a href="https:&#x2F;&#x2F;www.juniorminingnetwork.com&#x2F;junior-miner-news&#x2F;press-releases&#x2F;1940-tsx-venture&#x2F;lmr&#x2F;106571-bourier-lithium-project-update-lomiko-metals-and-critical-elements-report-discoveries-and-identify-lithium-targets-for-exploration-using-goldspot-discoveries-artificial-intelligence-methods.html" rel="nofollow">https:&#x2F;&#x2F;www.juniorminingnetwork.com&#x2F;junior-miner-news&#x2F;press-...</a>
voidUpdate7 个月前
&gt; &quot;the amount of lithium present would meet projected 2030 world demand for lithium in car batteries nine times over&quot;<p>Does that mean the entire field has enough lithium for the requirements of 2030, 9 times? Or in other words, it can supply the lithium needs of car batteries from 2030 to 2039? That&#x27;s not particularly long...
评论 #41925038 未加载
nodesocket7 个月前
Time to buy some cheap land in southern Arkansas?
CHB04030854827 个月前
Lithium for everyone!<p><a href="https:&#x2F;&#x2F;www.nytimes.com&#x2F;2024&#x2F;10&#x2F;21&#x2F;business&#x2F;energy-environment&#x2F;arkansas-lithium-ev-batteries.html" rel="nofollow">https:&#x2F;&#x2F;www.nytimes.com&#x2F;2024&#x2F;10&#x2F;21&#x2F;business&#x2F;energy-environme...</a>
评论 #41920171 未加载
lovich7 个月前
Oh, is this where the conspiracy theory about the government controlling hurricanes to wipe out the south so that they could get lithium came from?<p>If not that’s funny timing given that was a few weeks ago
__MatrixMan__7 个月前
Great, now ask the AI to engineer a fungal genome that&#x27;ll help us purify it more easily: Frack in the substrate and spores, harvest fruit bodies on the surface, profit.
评论 #41918013 未加载
评论 #41919235 未加载
chromatin7 个月前
Serious question:<p>Given the mood alerting properties of lithium, are people living here chiller than would be expected (controlling for instance for poverty &#x2F; SES) ?
评论 #41916981 未加载
评论 #41916871 未加载
评论 #41916687 未加载
评论 #41919801 未加载
评论 #41916615 未加载
评论 #41918614 未加载
评论 #41917788 未加载
评论 #41916836 未加载
hiddencost7 个月前
Love to see a project that uses bog standard ML techniques and doesn&#x27;t call them AI. Respect.
评论 #41917059 未加载
评论 #41916961 未加载
评论 #41916963 未加载
评论 #41916805 未加载
评论 #41918105 未加载
评论 #41917432 未加载
评论 #41917794 未加载
bilsbie7 个月前
Me thinks we might switch batteries to sodium in just a few years.
评论 #41918419 未加载
评论 #41917790 未加载
farceSpherule7 个月前
Will never happen, because, you know... The environment...<p>People in the U.S. would rather be slaves to China than be self sufficient as we once were...
评论 #41920508 未加载
jerf7 个月前
I read the article carefully, twice. Doesn&#x27;t have a link to any original paper, of course. And I can&#x27;t find the answer to my question... did they, you know, <i>validate</i> the model? Did they actually take some samples at new locations and compare it to what the model says?<p>Or are they literally just announcing that &quot;Hey, we told the computer to tell us something, so it told us something&quot;? Yes, that is how it works. The computer will always tell you something if you make it tell you something. That isn&#x27;t the hard part. The hard part is getting it to tell you things that correspond to reality.<p>In the absence of validation, this means very little, especially in an environment where the USGS is fairly incentivized to loudly announce to the world that we&#x27;ve totes got plenty of lithium, my fellow countries, any effort to keep lithium away from us is just a waste of time, look at us just rolling in lithium over here.<p>Or, maybe they did do the validation, and it&#x27;s just the reporting that doesn&#x27;t consider that an important aspect of the story. <i>Somewhere</i> between funding and press release someone&#x27;s lost the trail but I don&#x27;t know who exactly.
评论 #41918356 未加载
flenserboy7 个月前
Interesting, &amp; not necessarily in a good way. This method could well presage unprecedented numbers of attempts at eminent domain takings or other means of forcing people out of their properties.
评论 #41918336 未加载
评论 #41917991 未加载